content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
four term polynomial with gcf
October 9th 2010, 07:19 AM #1
Senior Member
Joined
Jul 2010
Posts
358
Thanks
4
four term polynomial with gcf
Hi all;
I need to factor 16x^3y^3 +16 - 8y^3 - 32x^3 which is a four term polynomial with a common factor of 8, giving 8(2x^3y^3 +2 -y^3 - 4x^3) rearranging t... | 4 | [
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-0.028076171875,
-0.02392578125,
-0.03369140625,
0.038330078125,
-0.006744384765625,
0.0196533203125,
0.042236328125,
0.047119140625,
0.10986328125,
-0.05029296875... | 7,100 | 7100 | |
a,b,c,d are real ,prove this
December 1st 2008, 10:36 PM #1
a,b,c,d are real ,prove this
Given a,b,c,d as 4 real numbers
Avoiding method of contradiction prove
$<br /> a-b^2 , b - c^2 , c-d^2 , d- a^2 <br />$
cant all be greater
than $\frac{1}{4}$?
Thanks to the helper
Hi,
Let $... | 5 | [
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... | 7,101 | 7101 | |
limit problem_ass4_9
$lim_{x \to \infty} \frac{ln(e^{3x}-5x)}{x}$ How I can solve this ? I tried L'Hospital's but I stuck ...
hmmm.... after using L.H rule once you should get $\lim_{x \to \infty}\frac{\frac{3e^{3x}-5}{e^{3x}-5x}}{1}= \lim_{x \to \infty}\frac{3e^{3x}-5}{e^{3x}-5x}$ This is still of the form infinity o... | 5 | [
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0.018... | 7,102 | 7102 | |
Vectors and invertible matrix
October 25th 2009, 11:50 AM #1
Member
Joined
Oct 2008
Posts
124
Vectors and invertible matrix
Consider two vectors v1 and v2 in R^n. They form the matrix G =
[(v1 dot v1) (v1 dot v2)]
[(v2 dot v1) (v2 dot v2)]. For which choices of v1 and v2 is the matrix G invertib... | 5 | [
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0.032470703125,
-0.012023... | 7,103 | 7103 | |
tricky group proof
March 14th 2011, 12:30 PM #1
Banned
Joined
Mar 2011
Posts
118
tricky group proof
Show that any group of order 10 is either cyclic (so isomorphic to
Z10),
or is isomorphic to the dihedral group D5 of order 10 (symmetries of a regular
pentagon).
I have no idea how ... | 5 | [
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0.00726318359375,
0.0000158548355102539... | 7,104 | 7104 | |
Expected Value
April 28th 2009, 12:13 PM #1
Junior Member
Joined
Sep 2008
Posts
46
Expected Value
Confused in this section.. help appreciated..
If anyone can help with this... is there not a calculator function that will help??
Two examples:
In a lottery 3,000,000 tickets are sold at a dol... | 4 | [
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... | 7,105 | 7105 | |
degree of a path, path homotopy.
March 18th 2009, 03:08 PM
math8
degree of a path, path homotopy.
Let f and g be loops in the unit circle S^1 with base point (1,0). We show if deg(f)=deg(g), then f and g are path homotopic.
I know f,g: [0,1]-->S^1 and there must be unique paths f* and g* (lifting paths) s.t... | 5 | [
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0.004791259... | 7,106 | 7106 | |
Perfect Square Test
August 30th 2009, 02:56 PM #1
Perfect Square Test
Are there any tests you can perform to see whether an integer is a perfect square? The number I want to test is odd. The only test I know is: If $k$ is odd, then $k^2 \equiv 1 \mod 8$.
Unfortunately, the number I have passes this test. Are ... | 4 | [
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a=3n^(n-1)+2(-1)^n for neN
July 12th 2010, 04:43 PM #1
Newbie
a=3n^(n-1)+2(-1)^n for neN
Try induction, it's real easy in this case.
Hello, jess0517!
We can prove it by deriving that function ourselves . . .
$\text{Let }\{a\} \text{ be a sequence satisfying:}$
. . $a_1 = 1,\;\;a_2 = 8,\;\;a... | 5 | [
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-0.04931640625... | 7,108 | 7108 | |
Product Differentiation
March 27th 2009, 10:52 AM
Junesong
Product Differentiation
This is a homework problem on the Algebra of Derivatives section in my text. I'm not sure if I'm handling the $f(x^3)$ part correctly. Any suggestions (or if it's right, let me know) would help
ease my mind greatly.
Probl... | 5 | [
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0.040771484375,
-0.056884765625,
0.059570... | 7,109 | 7109 | |
Math Forum Discussions
Math Forum
Ask Dr. Math
Discussions
Internet Newsletter
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Teacher Exchange
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Search All of the Math Forum:
Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.
Topic: Word Problem help
Replies: 7 Last Post: Feb 9, 201... | 4 | [
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What is the most simple non-planar Gorenstein curve singularity?
up vote 9 down vote favorite
1
Let $R$ be a reduced curve singularity over an algebraically closed field $k$ and $\tilde{R}$ its integral closure in its total ring of fractions.
The $k$-dimension of $\tilde{R}/R$ is finite. If we assume $R$ is non-plana... | 5 | [
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-0.0693359375... | 7,111 | 7111 | |
Algebraicity of holomorphic representations of a semisimple complex linear algebraic group
up vote 7 down vote favorite
2
Let $G$ be a complex linear algebraic group, given to us as a closed subgroup of some $\mathrm{GL}(n,\mathbb{C})$. Suppose moreover that $G$ is semisimple. Then it's a fact that every
finite-dimens... | 5 | [
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-0.0040893... | 7,112 | 7112 | |
Limits involving infinity
April 18th 2010, 04:27 AM #1
Banned
Joined
Apr 2010
Posts
58
Limits involving infinity
Hello could someone please help me with this question: Find the limit of 2-x / (x - 1)^2 as x-> 1
What happened to the 2 in the numerator? And if you sub in x=1 for the denominator it equ... | 4 | [
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... | 7,113 | 7113 | |
Trig Exreme Values
November 7th 2009, 04:02 PM
john-1
Trig Exreme Values
Determine the extreme values of the following function in the given interval.
f(x)=2sin4x+3 , XE [0, pi]
This is my work:
f'(x)=2cos4x (4)
f'(x)=8cos4x
Now I am trying to find the critical numbers, but I'm not sure h... | 4 | [
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Finding square roots
Date: 6/17/96 at 14:42:9
From: Lori Brennan
Subject: Finding square roots
Jessica Baker wants to know how to find a square root of a number.
She's a fifth grader.
Date: 6/19/96 at 11:8:11
From: Doctor Dave
Subject: Re: Finding square roots
Dear Jessica,
The best way to find the square root i... | 4 | [
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Math Forum Discussions
Re: Derivative of a multivariable function by another multivariable
function
Posted: Apr 6, 2013 3:12 AM
On Fri, 5 Apr 2013, henuaenata wrote:
>
> I am trying to figure out how to write the derivative of a multivariable
> function by another multivariable function.
>
> For example, how to derive... | 5 | [
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0.0... | 7,116 | 7116 | |
Irrational equation explanation
February 9th 2006, 03:41 AM
DenMac21
Irrational equation explanation
I have a problem again with irrational equation.
I have to solve this equation:
$\sqrt[3]{x} + \sqrt[3]{{2x - 3}} = \sqrt[3]{{12(x - 1)}}$
I have solve it like this:
$\left( {\sqrt[3]{x} + \sqrt... | 4 | [
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Finding smallest n for finite sum
May 9th 2009, 04:59 PM #1
Finding smallest n for finite sum
Find smallest n so that the finite sum $\sum_{k=1}^{n}\frac{(-2)^{k}}{k!}$ is certain to differ from $\sum_{k=1}^{\infty}\frac{(-2)^{k}}{k!}$ by less than .001.
So I set up the inequality:
$a_{n+1} \le .001$
... | 5 | [
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... | 7,118 | 7118 | |
Use Math to Cheat People out of Holiday Treats!
It's the skeeball prize wall of adulthood – a jar filled with candy, coins, or some other tiny trinket. A person at the front of the room compels you to guess the amount in the jar for free, or for a
small donation to charity.
You could throw a number out off the top of... | 4 | [
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... | 7,119 | 7119 | |
Trig Identities Help
May 5th 2009, 12:54 AM #1
Newbie
Joined
Apr 2009
Posts
18
Trig Identities Help
Hi guys, im doing a Maths quiz, and have gone through the basic Trig Identity stuff, but I am stuck on 2 questions....Anyone give me an idea what to do?
Which of the following is equal to (1 − cos2y)(... | 4 | [
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Using change of variables to find indefinite integrals
April 26th 2011, 11:22 PM #1
Newbie
Joined
Apr 2011
Posts
12
Using change of variables to find indefinite integrals
These problems are destroying my mind.
\int 1/((10x-3)^2)
So far I've... \int u^2 1/udu, u=10x-3
After this is where my... | 5 | [
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trace
Context
Monoidal categories
With symmetry
With duals for objects
With duals for morphisms
With traces
Closed structure
Special sorts of products
Semisimplicity
Morphisms
Examples
Theorems
In higher category theory
Linear algebra
Background
Variations
Definitions
Paths and cylinders
Homotopy grou... | 5 | [
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0.1... | 7,122 | 7122 | |
Help with trig functions please
May 17th 2009, 09:25 AM #1
Junior Member
Joined
Jan 2009
Posts
36
Help with trig functions please
I need to know how
$1-\cos(2\arcsin\frac{s}{4}) = \frac{s^{2}}{8}$
and how
$\sin(2\arcsin\frac{s}{4}) = 2\frac{s}{4}\sqrt{1-\frac{s^{2}}{16}}$
I know the r... | 4 | [
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power series, radius of convergence.
January 25th 2008, 09:19 AM
rcmango
power series, radius of convergence.
I've posted a few steps of the problem i solved in the pic: http://img180.imageshack.us/img180/9913/26377643by1.png
however, what is the radius of convergence? i got the interval to be [0, 1]
... | 5 | [
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0.04541015625,
-0.08... | 7,124 | 7124 | |
Math Forum Discussions
Math Forum
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Discussions
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Search All of the Math Forum:
Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.
Topic: Spiral with constant velocity (same distance betwe... | 4 | [
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-0.013427734375,
... | 7,125 | 7125 | |
Stochastic Matrix/Steady-State vector
November 6th 2006, 05:28 PM #1
Member
Joined
May 2006
Posts
148
Thanks
1
Stochastic Matrix/Steady-State vector
Suppose that we have a nucloetide string consisting of A, C, G, and T. We are interested in the regions which are "CG rich". In one of the "CG rich" reg... | 4 | [
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-0.07861328125,
-0.01647... | 7,126 | 7126 | |
[SOLVED] Linear combination of a vector S
March 23rd 2010, 05:17 PM
mybrohshi5
[SOLVED] Linear combination of a vector S
Let S be = $<br /> \begin{bmatrix}2 \\ 1 \\ 0 \\ 4 \\ \end{bmatrix} \begin{bmatrix}1 \\ 3 \\ 4 \\ -4 \\ \end{bmatrix} \begin{bmatrix}3 \\ 4 \\ 4 \\ 0 \\ \end{bmatrix} \begin{bmatrix}4 \\ -3 \\... | 5 | [
-0.0208740234375,
0.00408935546875,
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0.0517578125,
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-0.055419921875,
-0.10205078125,
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0.047607421875,
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-0.1005859375,
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0.0234375,
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(Multivariable/Lagrange Multipliers) Find the maximum volume
November 15th 2012, 07:40 PM
jessicadowning
(Multivariable/Lagrange Multipliers) Find the maximum volume
Find the dimensions (height and radius) of a right circular cylinder of maximum volume that can be inscribed in a sphere of radius 18.
November 15... | 4 | [
0.03759765625,
0.0400390625,
-0.05029296875,
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... | 7,128 | 7128 | |
Determining Limiting Distributions
October 16th 2009, 11:31 AM #1
Member
Joined
Oct 2009
Posts
218
Determining Limiting Distributions
1. Let Xn denote the mean of a random sample of size n from a distribution that is $N(\mu, \sigma ^2)$. Find the Limiting distribution of Xn.
2. Let Y1 denote the fir... | 5 | [
-0.15234375,
-0.048828125,
0.03955078125,
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0.02490234375,
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0.000027060508728027344,
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-0.025634765625,
0.00262451171875,
0.03002... | 7,129 | 7129 | |
Math Help
June 17th 2014, 07:54 PM #1
Newbie
Joined
Jun 2014
From
Florida
Posts
2
10^80!
I understand that factorials are more of a pre-algebra subject, but with a number such as 10^80, I believe it is a little more "Higher Level" than that.
I also don't feel like taking all eternity to do the m... | 5 | [
0.00933837890625,
-0.08203125,
-0.005340576171875,
0.06787109375,
0.0245361328125,
0.00064849853515625,
0.0673828125,
0.0751953125,
-0.006011962890625,
0.050537109375,
0.04736328125,
-0.037353515625,
0.005645751953125,
0.0235595703125,
0.0390625,
0.0120849609375,
0.004913330078125,
... | 7,130 | 7130 | |
and Permutation
Combinations, Permutations, and Counting Events
The solution to many statistical experiments involves being able to count the number of points in a sample space. Counting points can be hard, tedious, or both.
Fortunately, there are ways to make the counting task easier. This lesson focuses on three r... | 4 | [
0.0126953125,
-0.006744384765625,
0.00121307373046875,
0.0037689208984375,
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0.11279296875,
-0.0123291015625,
0.11181640625,
0.034912109375,
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0.01251220703125,
0.072265625,
0.0267333984375,
0.006622314453125,
0.04150390625,
-0.03247070312... | 7,131 | 7131 | |
Matrices Help
November 16th 2008, 09:50 PM #1
Member
Joined
Nov 2008
Posts
76
Matrices Help
Determine which of the following formulas hold for all invertible nxn matrices A and B?
1. A+B is invertible
2. (I - A)(I + A) = I - A^2
3. A^9 is invertible
4. (A + A^-1)^3 = A^3 + A^-3
5. AB... | 4 | [
-0.09716796875,
-0.011474609375,
-0.0703125,
-0.005279541015625,
-0.039306640625,
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0.0478515625,
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0.05810546875,
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0.037841796875,
-0.01025390625,
-0.0166015625,
0.060302734375,
-0.037353515625,
-0.0336914... | 7,132 | 7132 | |
Finding unknown base from equation
January 28th 2011, 07:36 PM
xEnOn
Finding unknown base from equation
I am given this equation of an unknown base:
$x^2 - 10x +25$
It has a solution of x=5 and x=8 which are likely to be in our base 10.
I tried to find out the unknown base by comparing the co-effici... | 4 | [
-0.068359375,
0.027587890625,
0.033935546875,
-0.043701171875,
0.037353515625,
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0.0791015625,
-0.01336669921875,
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0.01007080078125,
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0.0625,
0.0225830078125,
0.028076171875,
0.095703125,
-0.0390625,
0.0322265625,
-0.008... | 7,133 | 7133 | |
Partial derivatives and the chain rule
June 18th 2013, 11:46 PM
99.95
Partial derivatives and the chain rule
Im revising for an exam i have next week, and cannot for my life understand the solutions to this previous exam question:
http://i.imgur.com/hLGMwIp.jpg
Is this essentially the same question as:... | 5 | [
-0.099609375,
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0.0... | 7,134 | 7134 | |
Need Help Solving a problem for work
November 2nd 2012, 08:09 AM
macleodjb
Need Help Solving a problem for work
Hi All,
I've been tasked at work for create an excel based product library for my company which will product parts. I'm working on a product that needs to be parametric. Please see the attached im... | 5 | [
-0.044189453125,
-0.01123046875,
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0.109375,
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-0.07080078125,
-0.01611328... | 7,135 | 7135 | |
partial fractions
January 21st 2007, 06:58 AM #1
Junior Member
Joined
Oct 2006
Posts
36
partial fractions
I'm getting stuck on these, so if someone can please help, I'd really appreciate it.
Use partial fractions to evaluate the integral.
1. ∫(3xsquared - 2x + 12) / (xsquared + 4) squared
... | 5 | [
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... | 7,136 | 7136 | |
[SOLVED] Algebra homework - please check if right ->
August 14th 2008, 02:29 PM #1
Junior Member
Joined
Jul 2008
Posts
37
MMMMMMMMi3
VF = PV (1 + E mmI N)
mmmmmmmmj=2mmj j
if,
Pv=2000$
I1=9%
N1=1 month
I2=6%
N2=2 months
I3=8%
N3=3 months
find VF
VF = 2... | 4 | [
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-0.00848388671875,
0.01495361328125,
0.016357421875,
0.0135498046875,
-0.0849609375... | 7,137 | 7137 | |
how to find xi(bar) = .5(x(i-1) - xi) using the midpoint rule
January 26th 2009, 05:29 AM
chse720
how to find xi(bar) = .5(x(i-1) - xi) using the midpoint rule
i need some help in finding xi using the midpoint rule. here is an example problem:
integral from 0 to 1 of (1 + x^4)^(1/2) where n=10
January 26th... | 4 | [
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-0.0... | 7,138 | 7138 | |
permutation and combination
June 24th 2008, 07:24 PM
divinewisdom0218
permutation and combination
1.Six books with different titles have green covers and three books with different titles have red covers. In how many ways can the nine books be arranged on a shelf if (a) the red books are not
to be separated,... | 4 | [
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0.01953125,
0.0037384033203125,
-0.109375,
-0.0... | 7,139 | 7139 | |
Another Permutation question
September 2nd 2011, 05:22 AM #1
Newbie
Joined
Sep 2011
Posts
5
Here is my question
In how many ways can 8 library books be arranged on a shelf if 3 of the books cannot be all together?
What i did is:
3 books cannot be together meaning there can be two, one or even... | 4 | [
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-0.01953125,
0.02734375,
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-0.0751953125,
-0.04736328125,
-0.10... | 7,140 | 7140 | |
steps to simplify equation
November 15th 2011, 06:20 PM #1
Newbie
Joined
Nov 2011
Posts
1
I have the following that I want to solve for v.
S = b - dv + r(b - dv) + c[b - dv + r(b - dv)] + t(b - dv + r(b - dv) + c[b - dv + r(b - dv)])
I started by getting rid of the parentheses:
S = b - dv +... | 4 | [
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-0.0028228759765625,
-0.0250244140625,
... | 7,141 | 7141 | |
Function Notation
September 26th 2010, 05:32 AM #1
Junior Member
Joined
Feb 2010
Posts
47
Function Notation
a bit stuck here...
question:
compute $\frac{4g(-5)+[g(2)]^{2}}{-2g(3)}$
also:
how would i solve f[k(-8)] , when i am given other variables for f and k to solve for other func... | 4 | [
-0.0264892578125,
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0.0291748046875,
0.01458740234375,
0.028198... | 7,142 | 7142 | |
Polar Graph Area
April 15th 2010, 07:39 AM #1
Newbie
Joined
Jan 2010
Posts
14
Polar Graph Area
Find the area for one loop of $r^{2} = 64sin2\theta$
I plotted three graphs; $r^{2}$ vs. [tex]\theta]/math], where it looks like a normal sin curve repeating twice between 0 and $2\pi$ ranging from 64 to -... | 5 | [
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0.07275390625,
0.06884765625,
0.046142578125,
-0.046875,
-0.07177734... | 7,143 | 7143 | |
load and inflation
June 21st 2009, 10:20 PM #1
Newbie
Joined
Jun 2009
Posts
16
load and inflation
hello
let say you get a loan of 1,000 with bank rate of interest 5% for 10 years
an online calculator says that you will totally have paid at the end of the 10 year period 1272.79, each month 10,61... | 5 | [
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0.040283203125,
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0.04248046875,
-0.087890625,
-0... | 7,144 | 7144 | |
Complex Number
Find the complex number $z$ which satisfies both $|z-3i|=3$ and $arg(z-3i)=\frac{3\pi}{4}$. Thanks in advance.
Hmmm you mean substituting $z-3i=a+ib$ ? $3=|z-3i|=\sqrt{a^2+b^2}$ $3 \pi /4=arg(z-3i)=arctan \frac ba$ ---> $\frac ba=\tan (3 \pi /4)=-1$ $a=-b$ , $a eq 0$ Substituting in the modulus : $3=\sq... | 5 | [
-0.083984375,
-0.025390625,
-0.07373046875,
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-0.038818359375,
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0.01348876953125,
0.031982421875,
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0.043701171875,
0.04833984375,
0.01495361328125,
-0.08642578125,
0.006683349609375,
-0.047363... | 7,145 | 7145 | |
Chinese remainder theorem
December 15th 2008, 01:23 PM #1
Newbie
Joined
Oct 2008
From
Montreal, Canada
Posts
7
Chinese remainder theorem
Hello everyone.
This is not really a homework but it is very urgent.
I have a Discrete math exam in one day and this problem is giving me so much headache!
... | 4 | [
-0.11962890625,
0.033935546875,
0.044921875,
-0.0218505859375,
0.0257568359375,
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0.03857421875,
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0.0167236328125,
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0.043212890625,
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0.00726318359375,
-0.037841796875,
0... | 7,146 | 7146 | |
Math Help
September 28th 2007, 07:43 AM #1
Newbie
Joined
Jun 2007
From
Boston
Posts
10
series
the natural numbers are grouped as follows:
(1) , ( 2 , 3 ) , ( 4 , 5 , 6 ) , ( 7 , 8 , 9 , 10 ) , ...
find an expression for the first term of the nth group and prove that the sum of the numbers i... | 4 | [
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0.037841796875,
0.09716796875,
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0.000400543212890625,
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-0.07568359375,
-0.01165771484375,
-0.07275390625,
-0.055908203125,
0.06005859375,
-0.... | 7,147 | 7147 | |
Regression Avoids Depression - Part 11
The use of Initial Steep Regressions control and regulate the amount of negative volatility that your bankroll will have to endure during any given session.
1. Two of the primary aspects of that control come from the roll duration decay rate and the bet survival rate that your c... | 4 | [
-0.0255126953125,
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0.000675201416015625,
0.0283203125,
-0.044677734375,
0.017822265625,
0.035156... | 7,148 | 7148 | |
Positive Deviations = Negative Deviations?
March 20th 2009, 10:23 PM
mibamars
Positive Deviations = Negative Deviations?
Show that for ANY data set, the sum of the positive deviations from the eman must be exactly equal to the sum of negative deviations from the mean?
I can work this out when subbing in va... | 4 | [
-0.0576171875,
0.0177001953125,
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-0.0244140625,
0.06982421875,
0.08984375,
0.0... | 7,149 | 7149 | |
Test the convergence of the series
Question : Test the convergence of the series $\sum_{n = 1}^\infty \frac{3n}{2(n + 1)}$
use the divergence test to show that the limit as n->infinity =3/2 so it diverges
The divergence test states that if the limit of 3n/(2(n+1)) doesnt = 0 then the series diverges. So take the limi... | 5 | [
-0.041259765625,
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0.033203125,
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-0.08447265625,
0.01513671875... | 7,150 | 7150 | |
Problem with integating for rocket boost phase, can anyone help?
May 26th 2010, 11:24 AM #1
Newbie
Joined
May 2010
Posts
3
Problem with integating for rocket boost phase, can anyone help?
I need to integrate this function once with respect to t to find an expression for h(t):
v(t) = -k ln(m-bt) - gt ... | 5 | [
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0.111328125,
0.017822265625,
-0.03808593... | 7,151 | 7151 | |
trigonometric and hyperbolic substitution
June 1st 2008, 11:00 PM
ArTiCK
trigonometric and hyperbolic substitution
Hi all,
My apologises to angel.white, i completely typed the incorrect question and i would like to thank Isomorphism
Using an appropriate trigonometric or hyperbolic substitution, find th... | 5 | [
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-0.0025177001953125,
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0.025146484375,
-0.0269775390625,
0.044189453125,
0.061767578125,
0.0005683... | 7,152 | 7152 | |
Function with open set properties
August 31st 2010, 07:28 PM #1
Function with open set properties
Suppose $f: \mathbb{R}^{n} \to \mathbb{R}^{k}$ has the following property: For any open set $U \subset \mathbb{R}^{k}$, $S = \{x : f(x)\in U\}$ is an open set in $\mathbb{R}^{n}$. Show that $f$
is continuous.
... | 5 | [
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0.07763671875,
-0.0107421875,
0.1259765625,
-0.06884765625,
0.0... | 7,153 | 7153 | |
Complex Logarithm Function
May 22nd 2011, 01:37 PM #1
Newbie
Joined
Nov 2010
Posts
21
Complex Logarithm Function
Question:
Show using a suitable contour that the complex logarithm function is defined by:
$Log(z) = \int_{[1,z]} \frac{1}{\zeta}\hspace{2mm} d\zeta = ln|z| + i\hspace{1mm}Arg(z)\hsp... | 5 | [
-0.0299072265625,
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0.083984375,
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0.01611328125,
0.09423828125,
0.0164794921875,
-0.072265625,
0.006195068359375,
-0.034912109375,
-... | 7,154 | 7154 | |
Generating correlated random variables using SAS
This code is based on the discussion on
SITMO
. It uses two ways to generate correlated random variables. For any correlation matrix,
C
,
1) Find the Cholesky decomposition. In SAS, this uses the
root
function in IML. Multiply the Cholesky decomposition to a matri... | 4 | [
-0.09814453125,
-0.0517578125,
-0.125,
0.01312255859375,
0.0191650390625,
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0.0036468505859375,
0.07958984375,
0.06689453125,
0.052978515625,
0.05029296875,
-0.050048828125,
-0.07666015625,
0.01287841796875,
-0.0625,
0.0001010894775390... | 7,155 | 7155 | |
Math Help
August 6th 2007, 04:05 PM #1
Junior Member
Joined
Jul 2007
Posts
72
help plz
How would you solve this and find y?
(e^(2x)(ydoubleprime) = 4(e^4x + 1)
I did this:
ydoubleprime = 4(e^4x + 1)/(e^(2x)
..but that doesnt seem to help, taking the integration of that looks difficult. I... | 4 | [
0.010986328125,
0.0247802734375,
0.07568359375,
-0.0024261474609375,
0.036376953125,
0.0133056640625,
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0.046875,
-0.0341796875,
-0.00677490234375,
0.0849609375,
-0.08349609375,
-0.004913330078125,
0.057373046875,
-0.0047607421875,
-0.0003185272216796875,
-0.0041198730... | 7,156 | 7156 | |
Brooks Design-Contemporary Graphics "Art Theory 101/ Database" Page 3:GoDNA: The Geometry of DNA (axial view) by Reginald Brooks, follows PIN: Pattern in Number...from primes to DNA. SCoDNA: the Structure and Chemistry of DNA (axial view) follows this.
1. INTRODUCTION
One of the most fundamental levels of Nature ... | 4 | [
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Introduction to MATLAB
1. Introduction to MATLAB
Welcome to the MATLAB component of Math 20D! If you are reading this, you are probably already logged into a PC. . . if not, click here for instructions on that. The next thing to do... | 5 | [
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0.016... | 7,158 | 7158 | |
Need some help with basic probability notation.
February 21st 2011, 05:36 PM
pantsaregood
Need some help with basic probability notation.
"A multiple choice test consists of four questions, each with four possible answers, only one of which is correct. You randomly guess each answer. What is the probability of:
... | 4 | [
0.07275390625,
0.04150390625,
0.0247802734375,
-0.004241943359375,
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0.09033203125,
0.0306396484375,
-0.0263671875,
0.10009765625,
-0.016357421875,
-0.063... | 7,159 | 7159 | |
Horner's Method of Solving Irrational Roots
Date: 01/29/98 at 05:56:15
From: migs chilo
Subject: Horner's Method of Solving Irrational Roots
Can you give a method, formula, and answer for this equation?
x^3 - 3x^2 - 2x + 5 = 0
Date: 01/29/98 at 16:46:05
From: Doctor Rob
Subject: Re: Horner's Method of Solving Irr... | 5 | [
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0.00579833984375,
-0.05322265625,
-0.0... | 7,160 | 7160 | |
Baire Category and Residual Sets
August 3rd 2009, 08:47 AM #1
Member
Joined
Jul 2009
Posts
152
Baire Category and Residual Sets
I posted this problem some time ago, and it didn't elicit any feedback. So, in compliance with MHF Rules, I am now reposing the problem with some additional info. The result is ... | 5 | [
0.060791015625,
-0.05810546875,
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0.09228515625,
0.01068115234375,
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-0.1044921875,
0.10693359375,
-0.014892... | 7,161 | 7161 | |
help with partial fractions
November 8th 2010, 07:21 AM #61
Member
Joined
Nov 2009
Posts
103
Thanks mate. Is their anyway I can get your help again in the future? Im working through the laplace transform unit thats why I needed help with partial fractions because these were to do with
solving differen... | 5 | [
-0.10595703125,
0.078125,
0.08935546875,
0.01202392578125,
0.0283203125,
0.0927734375,
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0.0299072265625,
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0.046875,
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0.0145263671875,
0.0277099609375,
... | 7,162 | 7162 | |
Integral of a Power
Date: 9/8/96 at 21:51:56
From: Chris Cummings
Subject: Integral of a Power
I've forgotten a lot about calculus. Could you explain why
integral from -1 to 2 of x^2/3 = x^3/9 |from -1 to 2
Thanks!
Date: 9/9/96 at 20:37:32
From: Doctor Tom
Subject: Re: Integral of a Power
Well, I clearly ca... | 4 | [
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0.013610839... | 7,163 | 7163 | |
Converting 2nd order DEs to 1st order
June 30th 2008, 11:31 AM
griffsterb
Converting 2nd order DEs to 1st order
So I have a question that asks to convert the 2nd order equation
$mx'' = mg + b(x) - ax'$
Into a 1st order equation. This equation describes a bungee jump where b(x) is a function for the "sp... | 5 | [
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Rotated rectangle
April 22nd 2008, 07:42 AM
dave.lawrence
Rotated rectangle
Dear Forum,
Hoping someone can help me with a little trig and geometry
In the attached pic the grey rectangle has been rotated by @ degrees, the red dotted box is then constructed around it to exactly enclose it.
given the... | 4 | [
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0.067382... | 7,165 | 7165 | |
Ellipse changed in 2 parameters
December 18th 2006, 10:22 AM
Optiminimal
Ellipse changed in 2 parameters
I need some help to pull this through, first a background, then some questions. But first of all, I prefer using the following "parametric polar" formulas for an ellipse:
x = cx + a Cos[t] Cos[T] + b Sin[... | 4 | [
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mutually incompatible abstraction terms?
up vote 3 down vote favorite
2
If $\phi$ is any formula of set theory with just one free variable $x$, the abstraction term $A_{\phi}=\lbrace x | \phi(x) \rbrace$ is either a set or a proper class. Assume that ZFC is consistent,
or any large cardinal axiom you like. Then my que... | 5 | [
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0.00982666015625,
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0.05... | 7,167 | 7167 | |
Can you check my answer Please.
June 17th 2008, 04:38 PM #1
Newbie
Joined
May 2008
Posts
23
Can you check my answer Please.
I completing complex math via correspondence .. don't have a teacher to refer to, so if you could check me equation/answer and advise would be much appreciated.
I honestly can'... | 5 | [
0.01031494140625,
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0.06787109375,
-0.029052734375,
0.06396484375... | 7,168 | 7168 | |
Multiple integral
How come I get a negative answer? What's wrong? 10x in advance.
Got ya, 10x. I have another one, how am I suppose to solve this one, I cant use polar coordinates, right? I have no idea. 10x in advance.
New questions require new threads. You need to switch to a new set of coordinates. The integrand s... | 4 | [
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... | 7,169 | 7169 | |
Worded equation
May 10th 2010, 02:32 AM #1
Junior Member
Joined
Feb 2009
Posts
59
Worded equation
Find two positive numbers whose sum is 4 and such that the sum of te cube of the first an the square of the second is as small as possible.
Thanks any help would be appreciated!
hi
let x and y... | 5 | [
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Math Help
July 12th 2007, 05:57 PM #1
suki0918
Guest
diff eq help
Find the particular solution of the differential equation: y" - 4y' + 4y = e^(2x)?
I'm not sure what to do b/c I get 0 for A?? Can someone help, this is what I had so far:
Y(x) = Ae^2x
Y'(x) = 2Ae^2x
Y"(x) = 4Ae^2x
So... 4Ae... | 5 | [
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0.0... | 7,171 | 7171 | |
2a. Find the Probability
February 7th 2008, 12:41 AM
cu4mail
2a. Find the Probability
Plz help on this..
A class has 12 boys and 4 girls. Suppose three students are selected at random from the class. Find the probability P that they are all boys using Multiplication theorem for conditional
probability.
... | 4 | [
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0.04296875,
-0.002044677734375,
-0.00772... | 7,172 | 7172 | |
2nd and 3rd Derivatives!!!!!
June 26th 2008, 01:39 PM #1
Member
Joined
Jun 2008
Posts
87
2nd and 3rd Derivatives!!!!!
Hi! This is my last question, I need the 2nd and 3rd derivatives of (lnx) / (8x). I have the first derivative as being (8-8lnx) / (64x^2) is that right?? I'm not sure!!! And I need the ne... | 5 | [
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-0.046630859375,... | 7,173 | 7173 | |
Without Graphing
January 24th 2007, 12:45 PM
symmetry
Without Graphing
Determine, WITHOUT GRAPHING, whether the two given quadratic functions have a maximum value or a minimum value and then find the value.
NOTE: What exactly is meant by a max and min value here?
(1) f(x) = -2x^2 + 8x + 3
(2) f(x)... | 4 | [
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0.005584716796875... | 7,174 | 7174 | |
Please show working to express these in partial fractions
November 18th 2009, 07:58 AM #1
Newbie
Joined
Nov 2009
Posts
1
Express in partial fractions:
a) (3x + 1) / (x + 1)^2
b) (x^2 + 7x + 2) / (1 + x^2)(2 - x)
a)
$\frac {3x + 1} {(x + 1)^2}$ (it's the repeated factor type) so
$\... | 4 | [
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Logical Equivalence
Mathematical Logic
TEXT IN RED IS INCORRECT
Tautologies and Contradictions
A proposition that is always true is called a... | 4 | [
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-0.016479... | 7,176 | 7176 | |
Math Help
3x^2+5x-7 I want to make sure this is an error in the book. You can't factor this right?
I certainly hope you mean $\displaystyle 3\left[x - \left(-\frac{5}{6} + \frac{\sqrt{109}}{6}\right)\right]\left[x - \left(-\frac{5}{6} - \frac{\sqrt{109}}{6}\right)\right]$... \displaystyle \begin
{align*} 3x^2 + 5x - ... | 4 | [
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-0.03271484375,... | 7,177 | 7177 | |
stuck on integration by parts
June 28th 2010, 03:33 AM
absvalue
stuck on integration by parts
hello,
im stuck on an integration by parts problem:
$\int{s \times 2^s}$
here is what i have so far
$u = s$, $du = ds$
$dv = 2^{s}ds$, $v = \frac{2^{s+1}}{s+1}$
i know that
$\int{s \tim... | 5 | [
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0.04833984375,
-0.01794... | 7,178 | 7178 | |
Help Finding a Limit
September 19th 2013, 09:31 PM
IdentityProblem
Help Finding a Limit
lim as x --> 1 of
(x^(1/3) - 1) / (x^(1/2) - 1)
The answer is supposed to be 2/3.
I tried to use conjugates, but I still end up with a 0 in the denominator.
Could someone work through it? Thanks!
September... | 5 | [
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0.0308837890625,
-0.0400390625... | 7,179 | 7179 | |
Work Done By A Force
August 23rd 2009, 09:16 PM #1
Newbie
Joined
Jul 2009
Posts
9
Work Done By A Force
I've been racking my brain on this question for hours now, and I can't seem to get it. It's as follows:
"Find the work done by the force F(x,y) = (x + 2y)i + (6y - 2x)j acting counterclockwise once... | 5 | [
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-0.1005859375,
... | 7,180 | 7180 | |
Trig. Identity Proof: Sin2X CotX- 2Sin^2X = 2 Cos2X ...?
May 1st 2008, 07:29 PM #1
Newbie
Joined
May 2008
Posts
16
Trig. Identity Proof: Sin2X CotX- 2Sin^2X = 2 Cos2X ...?
Hello everyone. I am new to this site.
Now, here is the situation. I am in 11th grade math III, and we started Trig. Identities ... | 4 | [
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0.06884765625,
-0.... | 7,181 | 7181 | |
Equivariant Surgery problem
up vote 2 down vote favorite
1
I have a question about surgery.
Let $G= \mathbb{Z}_m \times \mathbb{Z}$ and $M$ be a oriented 3-manifold with G-action. i.e. There exists a map $f\colon M/G \to BG$, where $BG$ is classifying space.($BG=K(G,1)=K(\mathbb{Z}_m \times
\mathbb{Z},1)).$ Therefore... | 5 | [
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0.0688... | 7,182 | 7182 | |
Implicit derivative and related rates?
February 6th 2013, 07:40 PM
Kevindqc
Implicit derivative and related rates?
Hi!
I'm having a bit of trouble with this assignment. I had to miss a couple class, and I'm afraid the teacher talked about this. I have the notes, but they are not of much help and don't talk ... | 4 | [
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0.03271484375,
0.009887695312... | 7,183 | 7183 | |
In need of DESPERATE help
April 12th 2006, 06:07 PM #1
MIKEJR
Guest
In need of DESPERATE help
Can ANYONE please be so helpful as to help me with the following 100 equations.I am clueless about this and I have no idea on how to work out the equations..I would gladly appreciate it.. Please
reply just by marking... | 4 | [
-0.04345703125,
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-0.047119140625,
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0.09375,
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0.020751953125,
0.0732421875,
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0.034423828125,
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0.11572265625,
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-0.05590... | 7,184 | 7184 | |
Use of definitions to prove limits
How would you prove the following limit using the epsilon-delta definition of a limit, $\lim_{x\to1} \frac{x}{1+x} = \frac{1}{2}$
Fix $\delta =1$ so we can find an upper bound for $\frac{1}{\left|x+1\right|}$: $\left|x-1\right|<1\implies -1<x-1<1\implies 1<x+1<3\implies\frac{1}{3}<\f... | 5 | [
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0.048095703125,
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0.05224609375,
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0.00927734375,
-0.07275390625,
0.061279296875,
-0.00891113281... | 7,185 | 7185 | |
Trig Substitutions
April 20th 2008, 08:04 PM
kid funky fried
Trig Substitutions
Let
$<br /> x = 3\sin u<br />$
$<br /> \int {\frac{{dx}}<br /> {{x^2 \sqrt {9 - x^2 } }}} = \frac{1}<br /> {9}\int {\csc ^2 udu} = - \frac{1}<br /> {9}(\frac{{\sqrt {9 - x^2 } }}<br /> {x}) + C<br />$
I understand every... | 5 | [
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0.0791... | 7,186 | 7186 | |
Group theory question
November 29th 2012, 03:07 PM
Ant
Group theory question
Hi,
Let $H_{1}, H_{2}, H_{3}$ be subgroups of a group $G$ under addition. Moreover suppose $x\in H_{1}, y\in H_{2}, x+y \in H_{3}$
I'm wondering if it then follows that $H_{1} = H_{2} = H_{3}$
Could anyone offer any hel... | 5 | [
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0.02294921875,
-0.043212890625,
0.029785156... | 7,187 | 7187 | |
ball carton
May 19th 2010, 08:40 PM
kingman
ball carton
Any help offered in solving the below question will be much appreciated.
Thanks
Kingman
A manufacturer makes balls which are packed in cartons of 20 and send to market
for sale. A ball will not meet the minimum requirement for packing for s... | 4 | [
0.095703125,
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0.0289306640625,
-0.022705078125,
-... | 7,188 | 7188 | |
double integral
March 6th 2007, 01:31 AM #1
Newbie
Joined
Nov 2006
Posts
10
double integral
can someone help me with this double integral please.
DOUBLE INTEGRAL: e^-r^2 r dr dtheta
where r is bounded by 0 and a
and theta is bounded by 0 and pi/2
thanks
Hello, mesterpa!
It see... | 5 | [
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... | 7,189 | 7189 | |
Calculus Word Problems
Date: 04/03/97 at 15:00:18
From: Nikita Bacchus
Subject: Calculus Word Problems
Hi, I really hope you can help me with my problems. I have tried to
figure out these questions but I can't seem to get an answer.
1) a) For any numbers a1,a2,a3,a4 find the value of x that minimizes
f(x)... | 5 | [
0.01409912109375,
0.0986328125,
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0.01171875,
-0.03662109375,
... | 7,190 | 7190 | |
Rules of derivatives.
November 10th 2013, 06:17 PM #1
Member
Joined
May 2011
Posts
133
Thanks
2
Rules of derivatives.
$\frac{-10}{(x+5)^3}$
Since this is a fraction I know I should use the quotient rule. My question is actually about the bottom part of the equation. I see it's to the third power... | 5 | [
-0.087890625,
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0.0390625,
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0.0380859375,
-0.021484375,
0.10205078125,
... | 7,191 | 7191 | |
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Topic: Variance question
Replies: 1 Last Post: Jul 15, 19... | 4 | [
0.004241943359375,
-0.011962890625,
0.0400390625,
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0.01446533203125,
-... | 7,192 | 7192 | |
Statistical properties of interval mapping methods on quantitative trait loci location: impact on QTL/eQTL analyses
Abstract
Background
Quantitative trait loci (QTL) detection on a huge amount of phenotypes, like eQTL detection on transcriptomic data, can be dramatically impaired by the statistical properties of inte... | 4 | [
0.000904083251953125,
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0.004241943359375,
-0.0262451171875,
0.031982421875,
-0.072265625... | 7,193 | 7193 | |
“My Favorite No” in #AlgPoW Teeter Trio
A middle-school math teacher, Ms. Alcala, shared the activity, “My Favorite No” on the Teacher Channel. I highly recommend watching the video. The idea is to collect work from students and then
share, anonymously, one incorrect solution that you really like. You might like it bec... | 4 | [
-0.078125,
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-0.0252685546875,
-0.059326171875,
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0.035400390625,
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0.037353515625,
-0.0140380859375,
0.0361328125,
0.005218505859375,
-0.0537109375,
0.0654296875,
0.0380859375,
0.06494140625,... | 7,194 | 7194 | |
Subgroup of abelian group
December 11th 2011, 05:12 PM #1
Subgroup of abelian group
There seems to be little literature on the subject of abstract algebra, to help confused persons like myself. My lecturer is also the worst person to teach it, cause for the first time in my
experiences of life i am entirely c... | 5 | [
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0.058837890625,
-0.0111083984375,
0.032... | 7,195 | 7195 | |
Orthogonal Subspaces
October 24th 2010, 11:35 AM #1
Member
Joined
Aug 2008
Posts
225
Orthogonal Subspaces
Let S be the subspace of R4 containing all vectors with x1 + x2 + x2 + x4 = 0. Find a basis for the space S orthogonal, containing all vectors orthogonal to S.
There are a few ways to solve this... | 5 | [
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0.047363... | 7,196 | 7196 | |
Solve for x
Hello again. Another monster, I see. $\frac{y}{x}+p(xy)=\frac{q}{s}$ First, multiply through by your LCD which is xs. $sy+psyx^2=qx$ $(psy)x^2-qx=-sy$ Now on to completing the square. Divide all
terms by (psy) $x^2-\frac{q}{psy}x=\frac{-sy}{psy}$ $x^2-\frac{q}{psy}x+\left(\frac{q}{2psy}\right)^2=-\frac{1}{p... | 4 | [
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0.037353515625,
-0.039794921875,
0.017333984375,
... | 7,197 | 7197 | |
Polynomial Rings - Gauss's Lemma - Point 2 of a previous post
April 13th 2013, 09:48 PM
Bernhard
Polynomial Rings - Gauss's Lemma - Point 2 of a previous post
Point 2 of my previous post on Gauss's Lemma got well lost in the 10 replies - so I am re-posting the remaining problem - which was problem (2)
Basic... | 4 | [
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0.0100097... | 7,198 | 7198 | |
Expression in Terms of Theta
April 30th 2009, 10:04 AM
ThaBeretta
Expression in Terms of Theta
A crate weighing $w$ pounds sits on a ramp positioned at an angle of $\theta$ with the horizontal. The forces acting on this crate are modeled by the equation $Mw cos \theta = w sin \theta$ ,
where $M$ is the coeff... | 4 | [
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