content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
What is the square of a cycle in S_7 symmetric group?
December 16th 2012, 09:33 PM #1
What is the square of a cycle in S_7 symmetric group?
Suppose there's a cycle $\alpha = (3714)$ in $S_7$ where $S_7$ is a symmetric group on a set $\{1, 2, \cdots, 7\}$
What is $\alpha^2$?
Is it composition of $\alpha$... | 4 | [
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-Multiple Discrete Hardy Operators with Weights for
Journal of Function Spaces and Applications
Volume 2013 (2013), Article ID 121767, 9 pages
http://dx.doi.org/10.1155/2013/121767
Research Article
Boundedness of -Multiple Discrete Hardy Operators with Weights for
^1Kazakhstan Institute of Management, Economics and ... | 5 | [
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... | 27,001 | 27001 | |
Combinatorial Interpretation of General Eulerian Numbers
Journal of Discrete Mathematics
Volume 2014 (2014), Article ID 870596, 6 pages
http://dx.doi.org/10.1155/2014/870596
Research Article
Combinatorial Interpretation of General Eulerian Numbers
^1Department of Mathematics and Statistics, Radford University, Radfo... | 5 | [
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\tan{2\alpha}=24/7
$\displaystyle\tan{2\alpha}=\frac{2\tan{\alpha}}{1-\tan^2{\alpha}}=\frac{24}{7}\Rightarrow 7\tan{\alpha}=12-12\tan^2{\alpha}$ $\displaystyle\Rightarrow 12\tan^2{\alpha}+7\tan{\alpha}-12=(3\tan{\
alpha}+4)(4\tan{\alpha}-3)=0$ $\displaystyle\tan{\alpha}=\frac{3}{4}, \ \frac{-4}{3}$ These are both 3,4,5... | 4 | [
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Factoring (Distributive Property in Reverse)
We can work the distributive property in reverse—we just need to check our rear view mirror first for small children.
When we rewrite ab + ac as a(b + c), what we are actually doing is factoring. A factor in this case is one of two or more expressions multiplied together.... | 4 | [
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Please help me
June 28th 2005, 03:56 PM #1
Junior Member
Joined
Jun 2005
Posts
58
Write an equation in slope-intercept from of a line with the following characteristics: perpendicular to the graph of 2x - 3y = 12 and passing through the point at (4,3).
I'm lost here.
Perpendicular lines have slo... | 4 | [
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specificity/sensitivity proof
September 19th 2008, 01:28 PM #1
Newbie
Joined
Sep 2008
Posts
16
specificity/sensitivity proof
Suppose that items belong to to one of two possible classes, C =0, 1 (0="negative", 1 = "positive"). Suppose that some feature X is known (measured) for each item, but the class me... | 4 | [
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Trigonometric identities
Trigonometric identities Prove the identity 1-cos2 x= cos2 x tan2 x Hint: use t-chart Left hand side right hand side
The LHS side reduces to sin^2(x), due to the LHS being an offshoot of the Pythagorean Identity sin^2(x)+cos^2(x)=1. The RHS side can be rewritten as cos^2(x)*(sin^2(x)/cos^2(x))... | 4 | [
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Generalized Fractional Master Equation for Self-Similar Stochastic Processes Modelling Anomalous Diffusion
International Journal of Stochastic Analysis
Volume 2012 (2012), Article ID 427383, 14 pages
http://dx.doi.org/10.1155/2012/427383
Research Article
Generalized Fractional Master Equation for Self-Similar Stochas... | 4 | [
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An EPQ Inventory Model with Allowable Shortages for Deteriorating Items under Trade Credit Policy
Discrete Dynamics in Nature and Society
Volume 2014 (2014), Article ID 476085, 10 pages
http://dx.doi.org/10.1155/2014/476085
Research Article
An EPQ Inventory Model with Allowable Shortages for Deteriorating Items under... | 4 | [
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Probability Help
September 27th 2006, 07:06 PM
Crimsonfear
Probability Help
Yeah I need some fast help...
1. A Box Contains 11 balls, numbered 1, 2, 3, 4..........11. If 6 balls are drawn simultaneously at random, what is the probability that the sum of the numbers on the ball drawn is odd.
A). 100/231... | 4 | [
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Present Values
November 4th 2009, 11:19 AM #1
Newbie
Joined
Oct 2009
Posts
6
Present Values
Find present value as at january 2009 of a series of payments of 100 payable on first day of each month during years 2010,2011,2012. Assume effective rate of interestof 8% p.a
Why is that funny? Would it be l... | 5 | [
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Inequalities
July 25th 2009, 08:46 AM #1
Member
Joined
Apr 2009
From
california
Posts
121
Inequalities
Solve 3 < l X - 5 l .
When I graph this I can see the answer is 2 < X < 8
But when I try to sovle it as an inequality it doesn't work. What am I doing wrong?
3 < X -5
X > 8
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Uniqueness of Improper Integral
March 4th 2006, 03:38 PM
ThePerfectHacker
Uniqueness of Improper Integral
If $f(x)$ is a countinous real function, we define,
$\int^{\infty}_{-\infty}f(x)dx$ as being convergent if there exists a $a\in\mathbb{R}$ such as, $\int^{\infty}_af(x)dx$ and $\int^a_{-\infty}f(x)dx$ ar... | 4 | [
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Analysis question
February 4th 2011, 05:04 AM #1
Member
Joined
Feb 2011
Posts
75
Analysis question
suppose that f : (a,b)\{c} ----> real numbers is a function such that
lim (x--->c+) {f(x)} and lim (x--->c-) {f(x)} both exist and are equal to a common value l.
how can we prove that lim (x--->c)... | 4 | [
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On Semicompact Sets and Associated Properties
International Journal of Mathematics and Mathematical Sciences
VolumeΒ 2009Β (2009), Article IDΒ 465387, 8 pages
http://dx.doi.org/10.1155/2009/465387
Research Article
On Semicompact Sets and Associated Properties
Department of Mathematics, Faculty of Science, The Hashem... | 4 | [
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Stability Analysis of Numerical Methods for a 1.5-Layer Shallow-Water Ocean Model
Journal of Applied Mathematics
Volume 2013 (2013), Article ID 478054, 12 pages
http://dx.doi.org/10.1155/2013/478054
Research Article
Stability Analysis of Numerical Methods for a 1.5-Layer Shallow-Water Ocean Model
^1Key Laboratory of... | 4 | [
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Frequency Diverse Array Radar Cramér-Rao Lower Bounds for Estimating Direction, Range, and Velocity
International Journal of Antennas and Propagation
Volume 2014 (2014), Article ID 830869, 15 pages
http://dx.doi.org/10.1155/2014/830869
Research Article
Frequency Diverse Array Radar Cramér-Rao Lower Bounds for Estimat... | 4 | [
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-Path Cover Polynomial of a Graph and a Model for General Coefficient Linear Recurrences
International Journal of Combinatorics
Volume 2014 (2014), Article ID 258017, 13 pages
http://dx.doi.org/10.1155/2014/258017
Research Article
The -Path Cover Polynomial of a Graph and a Model for General Coefficient Linear Recurr... | 4 | [
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How to prove that n^2 + n + 2 is even??
It's a pity to use induction n²+n+2 = (n+1)² - n + 1 n odd => (n+1)² even => (n+1)² - n + 1 even n even => (n+1)² odd => (n+1)² - n + 1 even By induction Easy for n=0 If right for n then n²+n+2 even
(n+1)²+(n+1)+2 = n²+2n+1 + n + 3 = n²+n+2 +2n+2= n²+n+2 +2(n+1)
Hello, NeedHelp1... | 4 | [
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Urgent help needed parallelogram
May 24th 2010, 07:12 PM #1
Junior Member
Joined
May 2010
Posts
52
Urgent help needed parallelogram
In parallelogram ABCD, angle A is x(x+1) and angle B is 108°. Show your work in finding the value of x
$\angle{A} = \angle{C}$ and $\angle{B} = \angle{D}$.
Also, t... | 4 | [
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Derivative (1st Principles)
February 17th 2009, 02:52 PM #1
Member
Joined
Nov 2008
From
Ontario
Posts
80
Derivative (1st Principles)
Find the derivative of the function using the definition of derivative.
1) x + sqrt(x)
2) 1 / sqrt(x)
---------------
1) ((x+h) + sqrt(x+h) - [x + sq... | 5 | [
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Collision question.
May 5th 2011, 01:34 AM
silvercats
Collision question.
10KG ball travels at a speed(velocity) of 5ms and hits a 4KG balls which is travelling at the speed of 2ms and travelling to the same direction and 1st one.what are the velocities of two balls
after the collision.
take e=1/2
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sequence of polynomials
May 1st 2010, 11:56 AM #1
Junior Member
Joined
Jul 2009
Posts
67
sequence of polynomials
let $<br /> \left\{ {p_n } \right\}<br /> <br />$ be a sequence of polynomials of real variable defined by
$<br /> p_1 = 0<br /> <br />$
$<br /> p_{n + 1} = \frac{1}{2}(x + 2p_n (x) ... | 4 | [
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Ring Homomorphism
September 21st 2010, 01:57 AM #1
Member
Joined
Dec 2009
Posts
224
Ring Homomorphism
(a) What does the question mean by 'determining the kernel'? I know that kernels are ideals and ideals are kernels. Since $\varphi$ is a ring homomorphism from $R \to \mathbb{Z}$, then $ker(\
va... | 5 | [
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Please help me out here about Independent Events
November 4th 2007, 02:30 AM #1
Member
Joined
Oct 2007
Posts
145
Please help me out here about Independent Events
Given 2 events A and B, is it possible that B is independent of A, but A is positively dependent on B (A is more likely to occur given that B h... | 4 | [
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... | 27,025 | 27025 | |
Notes on the Global Well-Posedness for the Maxwell-Navier-Stokes System
Abstract and Applied Analysis
Volume 2013 (2013), Article ID 402793, 6 pages
http://dx.doi.org/10.1155/2013/402793
Research Article
Notes on the Global Well-Posedness for the Maxwell-Navier-Stokes System
^1Department of Mathematics, Chosun Unive... | 5 | [
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Strong induction proofs
December 11th 2012, 01:13 AM
cloudNINEresident
Strong induction proofs
i'm having trouble understanding strong induction proofs
i understand how to do ordinary induction proofs and i understand that strong induction proofs are the same as ordinary with the exception that you have to a... | 4 | [
-0.0654296875,
-0.0159912109375,
0.1357421875,
-0.045654296875,
0.08740234375,
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0.0247802734375,
0.000732421875,
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0.011474609375,
0.048583984375,
-0.0308837890625,
-0.0517578125,
0.03857421875,
0.02001953125,
0.030... | 27,027 | 27027 | |
Marginal distribution
April 12th 2008, 04:58 AM
matty888
Marginal distribution
For the following joint distribution
---Y
X- 1-- 2
0 .02 .08
1 .11 .44
2 .07 .28
(i) Calculate the marginal distribution for each of X and Y
(ii) Find
a) P(X >= 1)
b) P(X = 1 | Y = 2)
(iii) ... | 4 | [
0.02587890625,
-0.061767578125,
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-0.037353515625,
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0.05029296875,
0.022705078125,
0.038330078125,
0.0400390625,
0.0673828125,
-0.0106201171875,
0.0228271484375,
0.0074462890625,
0.0017852783203125,
0.0810546875,
-0.042724609375,
... | 27,028 | 27028 | |
Simply expression
January 11th 2010, 01:07 AM #1
Super Member
Joined
Dec 2008
Posts
509
Simply expression
Hi
Can someone help me simplify this expression. i tired using different identities but still cannot get the answer.
$sec^2(x)+cosec^2(x)-sec^2(x)cosec^2(x)$
P.S
Last edited by Paym... | 4 | [
-0.033203125,
0.04931640625,
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0.09521484375,
-0.01409912109375,
0.06103515625,
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0.00653076171875,
0.0206298828125,
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-0.0123291015625,
0.0169677734375,
-0.017333984375,
0.00933837890625,
-0.05126953125,
0.0874023... | 27,029 | 27029 | |
Rocket Physics
Picture of Saturn V Launch for Apollo 15 Mission
. Source:
NASA
Rocket physics, in the most basic sense, involves the application of
Newton's Laws
to a system with variable mass. A rocket has variable mass because its mass decreases over time, as a result of its fuel (propellant) burning off.
A ro... | 4 | [
-0.0185546875,
-0.018798828125,
0.04638671875,
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0.008056640625,
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0.060302734375,
0.023681640625,
0.09033203125,
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0.029296875,
-0.07275390625,
-0.01171875,
0.003570556640625,
0.... | 27,030 | 27030 | |
integral for cos(xt)/(1+t) dt
i need to show it with leibnez rule but i cant find how
Lets start evaluating the indefinite integral... $\varphi (x, t)= \int \frac{e^{x t}}{1+t}\cdot dt$ (1) Setting $1+t=\tau$ You obtain first the integral... $\varphi (x,\tau) = e^{-x} \int \frac{e^{x
\tau}}{\tau}\cdot d\tau$ (2) ... a... | 5 | [
-0.059326171875,
-0.00069427490234375,
0.09423828125,
-0.06201171875,
0.07373046875,
-0.01361083984375,
0.07568359375,
0.0517578125,
0.0096435546875,
-0.018310546875,
0.1123046875,
-0.054443359375,
-0.02392578125,
-0.0272216796875,
0.002777099609375,
-0.032470703125,
-0.0148315429687... | 27,031 | 27031 | |
Periodicity and Permanence of a Discrete Impulsive Lotka-Volterra Predator-Prey Model Concerning Integrated Pest Management
Discrete Dynamics in Nature and Society
Volume 2013 (2013), Article ID 767526, 10 pages
http://dx.doi.org/10.1155/2013/767526
Research Article
Periodicity and Permanence of a Discrete Impulsive ... | 5 | [
-0.00750732421875,
0.055419921875,
0.037109375,
0.0216064453125,
0.037841796875,
-0.07177734375,
-0.03125,
-0.03369140625,
0.0361328125,
0.05224609375,
0.06640625,
-0.0673828125,
0.0311279296875,
0.04052734375,
0.006866455078125,
0.05859375,
0.033203125,
-0.04736328125,
0.0336914... | 27,032 | 27032 | |
Factorise the Following
Please can someone help in factorising the following quadratic using simple factors.... 20x^2+7x-6 Thanks in advance. JP
Last edited by jp.101; December 23rd 2008 at 09:37 AM.
Factoring $20x^2+ 7x- 6$ means finding (ax+ b)(cx+ d) so that the product, $acx^2+ (ad+ bc)x+ bd$ is equal to that. Th... | 4 | [
-0.0390625,
0.0057373046875,
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0.0223388671875,
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-0.10791015625,
0.009033203125,
0.03515625,
-0.0203857421875,
0.0654296875,
0.064453125,
-0.03076171875,
0.033447265625,
-0.00098419189453125,
0.0888671875,
... | 27,033 | 27033 | |
Sum/Product Rule Question
April 7th 2009, 06:03 PM #1
Newbie
Joined
Mar 2009
Posts
6
If you could help solve this just using addition and multiplication (sum and product rule) it would be greatly appreciated!!! Thank you in advance!
Question: In how many ways can a photographer at a wedding arrange 6... | 4 | [
-0.02734375,
0.0120849609375,
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-0.04931640625,
0.008544921875,
0.03955078125,
-0.039794921875,
0.00302124... | 27,034 | 27034 | |
Mean Value Theorem for integrals w/ log
December 2nd 2011, 12:30 AM #1
Member
Joined
Sep 2011
Posts
106
Thanks
1
Mean Value Theorem for integrals w/ log
An arched shaped monument is 570 ft high and has a 600 ft base. It can be modeled by the function $y=1140-285(e^{0.00439x}+e^{-0.00439x})$ where th... | 5 | [
0.0172119140625,
0.01422119140625,
0.05126953125,
-0.0830078125,
0.02490234375,
-0.10205078125,
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0.12890625,
-0.06689453125,
0.0263671875,
-0.041259765625,
-0.034912109375,
0.068359375,
0.03515625,
0.0035858154296875,
-0.0025482177734375,
-0.09375,
0.0277099609375,
... | 27,035 | 27035 | |
random variable of continuous type
April 17th 2009, 11:21 AM #1
Banned
Joined
Feb 2009
Posts
97
random variable of continuous type
Let R(t)= ln M(t), where M(t) is the moment-generating function of a random variable of the continuous type. How do you show the following?
a) $\mu=R'(0)$
b) $\sigma^... | 5 | [
0.035888671875,
-0.02734375,
0.08251953125,
0.044189453125,
0.00592041015625,
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0.040283203125,
0.08544921875,
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-0.050048828125,
-0.053466796875,
0.062255859375,
0.01092529296875,
-0.017456054... | 27,036 | 27036 | |
Infinite nested radicals
June 15th 2008, 09:23 PM #1
Junior Member
Joined
Jun 2008
Posts
54
Infinite nested radicals
Find the limit of the following expression if it converges:
$\sqrt {1 + \sqrt {2 + \sqrt {3 + ...}}}$
Also find a recurrence representation of the expression.
the limit is cal... | 5 | [
-0.055419921875,
-0.1337890625,
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0.05615234375,
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-0.0086669921875,
0.0458984375,
-0.040771484375,
0.0164794921875,
-0.006622314453125,... | 27,037 | 27037 | |
Optimal Energy Control Strategy Design for a Hybrid Electric Vehicle
Discrete Dynamics in Nature and Society
Volume 2013 (2013), Article ID 132064, 8 pages
http://dx.doi.org/10.1155/2013/132064
Research Article
Optimal Energy Control Strategy Design for a Hybrid Electric Vehicle
National Engineering Laboratory for E... | 4 | [
-0.0267333984375,
0.1005859375,
-0.0303955078125,
-0.0072021484375,
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0.0732421875,
0.0281982421875,
-0.00... | 27,038 | 27038 | |
Asymptotic Modeling of Coherent Scattering from Random Rough Layers: Application to Road Survey by GPR at Nadir
International Journal of Antennas and Propagation
Volume 2012 (2012), Article ID 874840, 9 pages
http://dx.doi.org/10.1155/2012/874840
Research Article
Asymptotic Modeling of Coherent Scattering from Random... | 4 | [
-0.058837890625,
-0.01904296875,
0.134765625,
0.046875,
0.0341796875,
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-0.042236328125,... | 27,039 | 27039 | |
population growth problem
February 18th 2013, 12:32 AM #1
population growth problem
dy/dx=1-0.2y, solve for y when y=0, x=0
This is how I solved it dy/(1-0.2y)=dx <=> -5* (-0.2dy/1-0.2y)=dx
integrating the equation, ln(abs) 1-0.2= x+c/-5
1-0.2y=e^(-x/5+c) <=> 1-0.2y=ce^-x/5
My final equation is y=... | 5 | [
-0.045654296875,
-0.00775146484375,
0.07958984375,
-0.031982421875,
0.03271484375,
-0.0908203125,
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0.029296875,
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0.041015625,
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0.043701171875,
-0.0732421875,
-0.10205078125,
-0... | 27,040 | 27040 | |
Using differentials in an applied problem
August 5th 2010, 12:01 PM #1
Member
Joined
Feb 2010
From
United States
Posts
155
Thanks
1
Using differentials in an applied problem
Use differentials to estimate the amount of paint needed to apply a coat of paint 0.05 cm thick to a hemispherical dome wit... | 5 | [
-0.016357421875,
0.0693359375,
0.08349609375,
-0.0277099609375,
0.0111083984375,
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0.0947265625,
-0.029541015625,
0.0537109375,
-0.05224609375,
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0.04345703125,
0.109375,
-0.0216064453125,
0.01287841796875,
-0.0179443359375,
0.08544921875,
... | 27,041 | 27041 | |
Solve using de Moivre's theorem: z^3=i
November 27th 2012, 07:50 PM #1
Newbie
Joined
Nov 2012
From
Jamaica
Posts
5
Solve using de Moivre's theorem: z^3=i
Hi! So I have to find the solutions to the following equation using de Moivre's theorem: z^3=i
Here's my attempt at solving:
z^3=i
z^... | 5 | [
-0.09716796875,
0.00015544891357421875,
-0.043212890625,
0.10205078125,
0.005035400390625,
-0.1123046875,
0.0458984375,
0.0205078125,
0.0771484375,
-0.0002193450927734375,
0.02880859375,
-0.0177001953125,
0.0107421875,
0.068359375,
0.036865234375,
-0.058837890625,
-0.0284423828125,
... | 27,042 | 27042 | |
Sum of a series
April 25th 2010, 07:11 PM #1
Junior Member
Joined
Feb 2010
Posts
45
Sum of a series & maclin series
So I have written down some notes, and I have forgotten why i wrote what i wrote down.
Find the sum of the series
$\sum_{n=1}^\infty nx^n$
I wrote down these steps
$\sum... | 5 | [
-0.04541015625,
0.0233154296875,
0.0458984375,
0.1015625,
-0.0260009765625,
-0.055419921875,
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0.0267333984375,
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0.080078125,
-0.025390625,
-0.06689453125,
-0.0031890869140625,
-0.00628662109375,
-0.... | 27,043 | 27043 | |
Homomorphisms and Factor Rings
February 21st 2013, 02:24 AM #1
Homomorphisms and Factor Rings
Let $\phi : R \rightarrow R'$ be a ring homomorphism and let N be an ideal of R
(a) Show that $\phi [N]$ is an ideal of $\phi [R]$
(b) Give an example to show that $\phi [N]$ need not be an ideal of R'
(c)... | 5 | [
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0.04736328125,
-0.0283203125,
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0.04248046875,
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-0.01104736328125,
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-0.033203125,
0.00360107421875,
0.0233154296... | 27,044 | 27044 | |
A Bayesian Approach to Multistage Fitting of the Variation of the Skeletal Age Features
Journal of Biomedicine and Biotechnology
Volume 2009 (2009), Article ID 623853, 7 pages
http://dx.doi.org/10.1155/2009/623853
Methodology Report
A Bayesian Approach to Multistage Fitting of the Variation of the Skeletal Age Featur... | 4 | [
0.003448486328125,
0.0263671875,
0.05224609375,
-0.058349609375,
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0.059814453125,
-0.1015625,
0.01220703125,
-0.09619140625,
0.046142578125... | 27,045 | 27045 | |
Multilevel Thresholding Segmentation Based on Harmony Search Optimization
Journal of Applied Mathematics
Volume 2013 (2013), Article ID 575414, 24 pages
http://dx.doi.org/10.1155/2013/575414
Research Article
Multilevel Thresholding Segmentation Based on Harmony Search Optimization
^1Departamento de Ingeniería del So... | 4 | [
-0.0203857421875,
0.035400390625,
0.05078125,
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-0.026123046875,
-0.0238037109375,
0.00799560546875,
0.017822265625,
0.051... | 27,046 | 27046 | |
logs in terms of x & y
April 22nd 2008, 08:58 AM #1
Newbie
Joined
Apr 2008
Posts
10
logs in terms of x & y
Log (p^8q^6) =
Log p^-6/q^-2 =
Log p^3/Log q^7 =
(Log p^9)^-9 =
expand as much as possible, then replace each log with x and y.
i need help! puhhleeez
you haven't poste... | 4 | [
-0.0054931640625,
0.06787109375,
0.0081787109375,
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0.0030364990234375,
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0.06298828125,
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-0.053466796875,
0.0927734375,
0.07763671875,
0.09228515625,
-0.138671875,
0.078... | 27,047 | 27047 | |
A Fuzzy Dropper for Proportional Loss Rate Differentiation under Wireless Network with a Multi-State Channel
Mathematical Problems in Engineering
Volume 2012 (2012), Article ID 827137, 16 pages
http://dx.doi.org/10.1155/2012/827137
Research Article
A Fuzzy Dropper for Proportional Loss Rate Differentiation under Wire... | 4 | [
-0.035400390625,
0.016357421875,
0.07275390625,
-0.00604248046875,
-0.01361083984375,
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0.0174560546875,
0.030517578125,
0.04052734375,
0.0030517578125,
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0.09765625,
-0.012451171875,
-0.0286865234375,
0.034912109375,
0.031494140625,
... | 27,048 | 27048 | |
Viscosity Approximations by the Shrinking Projection Method of Quasi-Nonexpansive Mappings for Generalized Equilibrium Problems
Journal of Applied Mathematics
Volume 2012 (2012), Article ID 235474, 30 pages
http://dx.doi.org/10.1155/2012/235474
Research Article
Viscosity Approximations by the Shrinking Projection Met... | 5 | [
-0.021728515625,
-0.00579833984375,
0.0703125,
-0.038818359375,
-0.0242919921875,
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0.054931640625,
0.038330078125,
0.00051116943359375,
0.01251220703125,
-0.03173828125,
0.06005859375,
0.0016021728515625,
-0.038818359375,
-0.080078125,
0.0296630859375,... | 27,049 | 27049 | |
Find the probability questions
December 6th 2006, 03:17 PM
jenneedshelp
Find the probability questions
Hey I was wondering if anyone could help me out with these two questions:
Find the probability of:
1) a five-card poker hand dealt from a standard deck of 52 playing cards results in full house (3 of ... | 5 | [
-0.0034637451171875,
0.043212890625,
-0.033203125,
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-0.036376953125,
0.01446533203125,
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-0.0673828125,
0.05615234375,
-0.01055908203125,
-0.0546875,
-0.0751953125,
... | 27,050 | 27050 | |
diagram 3D
December 15th 2011, 07:42 PM
ahmedb
diagram 3D
question: while standing at the left corner of the schoolyard in front of here school, Suzie estimates that the fronth face is 8.9m wide and 4.7 high. From her position. Suzie is 12.0m from the
base of the right exterior wall. She determines that the ... | 4 | [
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-0.03369140625,
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0.10302734375,
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0.0306396484375,
-0.02294921875,
... | 27,051 | 27051 | |
vector and parametric equations problem
September 12th 2009, 07:40 PM #1
Junior Member
Joined
Aug 2009
Posts
33
Given two points P(1, 7) and Q(−2,−3) there exists a line which goes through these two points.
This line intersects the x-axis at the point x_0 = (x_0, 0).
Find the general, vector and ... | 4 | [
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0.054931640625,
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0.05078125,
-0.12158203125,
-0.06494... | 27,052 | 27052 | |
the encyclopedic entry of inexact
In
thermodynamics
, an
inexact differential
or
imperfect differential
is any quantity, particularly
heat
Q and
work
W, that are not
state functions
, in that their values depend on how the
process
is carried out. The symbol , or δ (in the modern sense), which originated f... | 4 | [
-0.138671875,
-0.03662109375,
0.0279541015625,
0.083984375,
0.0007781982421875,
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0.00921630859375,
0.09521484375,
0.04931640625,
0.0400390625,
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0.017578125,
0.058837890625,
0.03564453125,
-0.036376953125,
-0.0286865234375,
-0.03833... | 27,053 | 27053 | |
integration
What is the integal of e^(x^2)x^4 from negative infinity to infinity? Thank you!
Hello, The function is an even function ie $f(x) = e^{x^2} x^4 = e^{(-x)^2} (-x)^4 = f(-x)$ ---------> $\int_{- \infty}^{+\infty} f(x) dx = 2 \int_{-\infty}^0 f(x) dx$ Now, let's integrate. At first
sight, you have to use the ... | 5 | [
0.04638671875,
0.06884765625,
0.05078125,
0.0025634765625,
0.0225830078125,
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0.00049591064453125,
-0.052978515625,
0.0269775390625,
0.08056640625,
-0.045654296875,
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0.07421875,
-0.0444... | 27,054 | 27054 | |
Help with Derivatives
February 20th 2009, 06:55 PM #1
Newbie
Joined
Feb 2009
Posts
8
Help with Derivatives
I need some help solving these derivative problems:
1. F(x)= 3rd root of(x)-[1/3rd root of(x)]
For this one I got: 1/3 x - 3rd root of(9)
2. (s^2+s+1)^4 * (s-2)^7
I tried doing thi... | 5 | [
-0.0235595703125,
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0.072265625,
0.000652313232421875,
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0.042724609375,
... | 27,055 | 27055 | |
Uniform Estimates for Damped Radon Transform on the Plane
Abstract and Applied Analysis
Volume 2013 (2013), Article ID 582137, 5 pages
http://dx.doi.org/10.1155/2013/582137
Research Article
Uniform Estimates for Damped Radon Transform on the Plane
Department of Mathematics, Ajou University, Suwon 443-749, Republic o... | 5 | [
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Linear Trig Equation help plz!
November 15th 2007, 07:08 AM #1
Junior Member
Joined
Sep 2007
Posts
55
Linear Trig Equation help plz!
2. Find all solutions of each equation.
a) cot x = 2.3 (I can find it with special angles, but not this)
b) 5 cos 3x = -3
3. c) 2sinx - 1 = -2
You people ... | 5 | [
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Statistical Convergence of Double Sequences of Order
Journal of Function Spaces and Applications
Volume 2013 (2013), Article ID 682823, 5 pages
http://dx.doi.org/10.1155/2013/682823
Research Article
Statistical Convergence of Double Sequences of Order
Department of Mathematics, Fırat University, 23119 Elazığ, Turkey... | 4 | [
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Differential Systems with Quadratic Right-Hand
Abstract and Applied Analysis
Volume 2011 (2011), Article ID 154916, 23 pages
http://dx.doi.org/10.1155/2011/154916
Research Article
Instable Trivial Solution of Autonomous Differential Systems with Quadratic Right-Hand Sides in a Cone
^1Department of Complex System M... | 5 | [
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... | 27,059 | 27059 | |
Interval Notation Check
October 24th 2008, 03:45 PM #1
Newbie
Joined
Oct 2008
Posts
1
Interval Notation Check
Solve the compound inequality:
3x >= -4x+2 and 5 >= 3x-4
Could someone check my work I am not sure if my interval notation is right.
My solution:
x>=2/7 & x<3
Give the resul... | 4 | [
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0.056884765625,
-0.035400390... | 27,060 | 27060 | |
complex numbers
$P (Z_1)$ and $Q (Z_2)$ are complex numbers in argand diagram and $O$ is the origin. show $OP$ and $OQ$ are perpendicular if $|Z_1 - Z_2| = |Z_1 + Z_2|$
Hello, stud_02! How about a geometric proof? $P (Z_1)$ and $Q (Z_2)$ are complex numbers in argand diagram and $O$ is the origin. Show $OP$ and $OQ$ a... | 5 | [
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0.03881... | 27,061 | 27061 | |
help finding the dirivative
January 29th 2008, 01:48 PM #1
Junior Member
Joined
Nov 2007
From
california
Posts
74
help finding the dirivative
Hi i am trying to find the dirivtive of (4-x^2)^(1/2). I know that i need to use u subsitution and u=4-x^2. Then i get d/dx[u^(1/2)](-2x) then i get stuck, can... | 5 | [
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Some Upper Matrix Bounds for the Solution of the Continuous Algebraic Riccati Matrix Equation
Journal of Applied Mathematics
Volume 2013 (2013), Article ID 792782, 9 pages
http://dx.doi.org/10.1155/2013/792782
Research Article
Some Upper Matrix Bounds for the Solution of the Continuous Algebraic Riccati Matrix Equati... | 5 | [
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Some Properties of a Generalized Class of Analytic Functions Related with Janowski Functions
Abstract and Applied Analysis
Volume 2012 (2012), Article ID 279843, 11 pages
http://dx.doi.org/10.1155/2012/279843
Research Article
Some Properties of a Generalized Class of Analytic Functions Related with Janowski Functions... | 5 | [
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-0.... | 27,064 | 27064 | |
Boundaries and areas..not sure if I did it right.
February 15th 2010, 05:56 PM #1
Junior Member
Joined
Dec 2009
Posts
55
Boundaries and areas..not sure if I did it right.
Consider the boundaries of the shaded region given (see attached graph).
Find the area A of this region by writing x as a func... | 5 | [
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-0.0766601562... | 27,065 | 27065 | |
When 10 is divided by the positive integer n, the remainder
Author Message
TAGS:
Re: Number properties question from QR 2nd edition PS 164 [#permalink] 06 Mar 2011, 15:54
... | 4 | [
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Approximation for large Catalan Numbers
September 13th 2010, 07:20 AM #1
Senior Member
Joined
Apr 2009
Posts
306
Approximation for large Catalan Numbers
Show that for a very large $m$, $C(m) \approx \frac{4^m}{m^{\frac{3}{2}} \times \sqrt{\pi}}<br />$
where $C(m)$ denotes the mth catalan number.
... | 5 | [
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Treatise On Analysis Vol-Ii
366 XV NORMED ALGEBRAS AND SPECTRAL THEORY
have a = ae' (15.8.3(iii)), and on the other hand a = g(e2) = eg(e) = ea, so
that ae eAer, and g =fa. It is clear that eAe' c: eA n Ae'; conversely, if
y e eA n Ae!, then j; = j>e' and y = ey (15.8.3(iii)), so that y = eye' e eAe'.
The im... | 4 | [
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... | 27,068 | 27068 | |
Collision Attacks on AES-192/256, Crypton-192/256, mCrypton-96/128, and Anubis
Journal of Applied Mathematics
Volume 2013 (2013), Article ID 713673, 10 pages
http://dx.doi.org/10.1155/2013/713673
Research Article
Collision Attacks on AES-192/256, Crypton-192/256, mCrypton-96/128, and Anubis
^1Center for Information ... | 4 | [
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... | 27,069 | 27069 | |
Solving Rational Expressions
October 28th 2009, 01:25 AM
henryW
Solving Rational Expressions
Hi, I am having trouble understanding how to answer questions like this:
$<br /> -2=<br /> \frac {1}{5}y-1<br />$
or
$<br /> \frac {-5}{2y}= \frac {1}{4}<br />$
October 28th 2009, 02:26 AM
Debsta
... | 4 | [
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... | 27,070 | 27070 | |
Estimation for Stochastic Nonlinear Systems with Randomly Distributed Time-Varying Delays and Missing Measurements
Mathematical Problems in Engineering
Volume 2012 (2012), Article ID 890512, 15 pages
http://dx.doi.org/10.1155/2012/890512
Research Article
Estimation for Stochastic Nonlinear Systems with Randomly Distr... | 4 | [
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... | 27,071 | 27071 | |
Intro Calc HW
April 3rd 2008, 03:05 AM #1
Newbie
Joined
Feb 2007
From
Australia
Posts
20
Intro Calc HW
logs----
if $10000 is invested at an interest rate compounded annually the investment will grow to $P after x years where
P=10 000(1.08)^x
d) how long will it take for the ionvestment... | 5 | [
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... | 27,072 | 27072 | |
Vectors help!
March 31st 2008, 12:27 AM #1
Junior Member
Joined
Feb 2008
Posts
60
Vectors help!
Hello. I'm currently having some problems on this question on vectors. If you could help me, it'll be great.
-----
Vector AC is [2,4,-3] and it forms the hypotenuse of a right angled triangle of tran... | 4 | [
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-0.0023956298... | 27,073 | 27073 | |
Trig Identities
November 12th 2006, 04:40 PM #1
Newbie
Joined
Nov 2006
Posts
3
Trig Identities
Solve for $0\leq x \leq 2\pi$
well i am bad at the math tool, but its 0<=x<=2pi
Cos2x = 1 - sinx
What would be the best way to set this up?
Hi Adam.
Use the identity that $\cos(2x) = 1 ... | 4 | [
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Work - kinetic energy theorem
Work - kinetic energy theorem is a generalized description of motion - not specific to any force type like gravity or friction. We shall, here, formally write work - kinetic energy theorem
considering an external force. The application of a constant external force results in the change in ... | 5 | [
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... | 27,075 | 27075 | |
Quotient Rule - Can't get correct answer
August 9th 2009, 07:35 AM
Macca567
Quotient Rule - Can't get correct answer
Hey, Got a Maths exam tomorrow and I'm having a bit of trouble trying to get the answer given in the back of the book for this problem:
I have to differentiate this:
x/(x+1)^1/2 The answ... | 5 | [
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-0.033935546875,... | 27,076 | 27076 | |
Rate of change question
December 13th 2010, 04:14 PM
liukawa
Rate of change question
Hi Guys,
Am currently stuck with this rate of change question.
question is as per attached file.
Please help thanks !
December 13th 2010, 08:57 PM
liukawa
up for help guys !
Thanks !
December 13th 201... | 5 | [
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0.00... | 27,077 | 27077 | |
Transforming integral in cartesian coordinates to polar coordinates
September 23rd 2010, 02:46 PM #1
Member
Joined
Oct 2009
Posts
195
Thanks
1
Transforming integral in cartesian coordinates to polar coordinates
x^2 + y^2 is of course a circle, but my book is very unclear on how to switch the coordina... | 5 | [
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-Baskakov-Beta-Stancu Type Operators
Journal of Calculus of Variations
Volume 2013 (2013), Article ID 814824, 8 pages
http://dx.doi.org/10.1155/2013/814824
Research Article
Some Approximation Properties of -Baskakov-Beta-Stancu Type Operators
^1Department of Applied Mathematics and Humanities, Sardar Vallabhbhai Nat... | 5 | [
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0.00396728515625,
-... | 27,079 | 27079 | |
Using Averaged Modeling for Capacitors Voltages Observer in NPC Inverter
Advances in Power Electronics
Volume 2012 (2012), Article ID 176876, 11 pages
http://dx.doi.org/10.1155/2012/176876
Research Article
Using Averaged Modeling for Capacitors Voltages Observer in NPC Inverter
Power Electronics Group, Université de... | 4 | [
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... | 27,080 | 27080 | |
Torsion subgroups in families of twists of elliptic curves
up vote 9 down vote favorite
5
Here is the short version:
Fix an elliptic curve $E/\mathbb{Q}$. How does the torsion structure $E_d(\mathbb{Q})_{tors}$ vary, as $E_d$ runs through the quadratic twists of $E$?
Here is the longer version:
I have been pla... | 5 | [
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UWB Localization System for Indoor Applications: Concept, Realization and Analysis
Journal of Electrical and Computer Engineering
Volume 2012 (2012), Article ID 849638, 11 pages
http://dx.doi.org/10.1155/2012/849638
Research Article
UWB Localization System for Indoor Applications: Concept, Realization and Analysis
I... | 4 | [
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Lagrange's four square theorem
Posted by: Steven Sam | February 10, 2009
Lagrange’s four square theorem
I wanted to present a proof of Lagrange’s four square theorem that I had seen a few years ago that I really like. I think there’s also some approaches using analytic number theory and algebraic
number theory, but t... | 5 | [
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limits of sequences
October 11th 2006, 01:04 PM #1
Newbie
Joined
Oct 2006
Posts
2
limits of sequences
a, Let q be the element of real numbers with q which is not equal to 0.
Show that if the absolute of q is less than 1, then
the limit of an absolute of q^n=0 as lim approaches positive infinity.
... | 4 | [
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Completing the square of a sphere
January 4th 2010, 06:14 PM #1
Completing the square of a sphere
Hey,
I've got this equation and I was wondering what the steps are to get the answer becuase I got something different to the answer.
x^2 + y^2 + z^2 + 4x − 6y + 2z + 6 = 0
Complete the square to find t... | 4 | [
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0.00... | 27,085 | 27085 | |
Characterizing Two-Dimensional Maps Whose Jacobians Have Constant Eigenvalues
http://dx.doi.org/10.4153/CMB-2003-034-4
Canad. Math. Bull. 46(2003), 323-331
Published:2003-09-01
Printed: Sep 2003
• Marc Chamberland
Recent papers have shown that $C^1$ maps $F\colon \mathbb{R}^2 \rightarrow \mathbb{R}^2$ whose Jacobi... | 4 | [
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0... | 27,086 | 27086 | |
Further Results on Colombeau Product of Distributions
International Journal of Mathematics and Mathematical Sciences
Volume 2013 (2013), Article ID 918905, 5 pages
http://dx.doi.org/10.1155/2013/918905
Research Article
Further Results on Colombeau Product of Distributions
^1Faculty of Electrical Engineering and Info... | 5 | [
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Quadratics Help!
January 5th 2013, 06:43 AM #1
Newbie
Joined
Jan 2013
From
Florida
Posts
1
Quadratics Help!
I have tried the quadratic formula and also completing the square(sorta).
Im Stuck Please help.
(questions are not in standard form yet)
6x^2 = 4 - 5x
4x^2 + 2x = 5
9(x ... | 4 | [
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Help with related rates problem (calculus I)
May 3rd 2009, 11:22 AM #1
Newbie
Joined
May 2009
Posts
11
Help with related rates problem (calculus I)
Two boats are racing with constant speed toward a finish marker, boat A sailing from the south at 13mph and boat B approaching from the east. When equidistan... | 4 | [
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-0.02563... | 27,089 | 27089 | |
Proving a summation
October 15th 2013, 07:10 AM #1
Junior Member
Joined
Jul 2012
From
Morocco
Posts
25
Proving a summation
Dear all, how can I prove the following summation (See attachment)?
I tried to use integrals but the result was kind of broad.
Attachment 29481
Re: Proving a summation
... | 5 | [
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... | 27,090 | 27090 | |
the encyclopedic entry of Zorn's lemma
Zorn's lemma, also known as the Kuratowski-Zorn lemma, is a proposition of set theory that states:
Every partially ordered set in which every chain (i.e. totally ordered subset) has an upper bound contains at least one maximal element.
It is named after the mathematician Max... | 5 | [
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Derivative of a function wrt to another function
August 21st 2012, 12:23 AM
albox
Derivative of a function wrt to another function
I have 3 sets called A,B and C. Each set is a union of 2 non intersecting subsets, i.e. :
$A = \{A1 \cup A2\}, A1 \cap A2 = \emptyset$
$B = \{B1 \cup B2\}, B1 \cap B2 = \empt... | 5 | [
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0.0986328125,
0.002334594726562... | 27,092 | 27092 | |
Laplace Transform
July 14th 2010, 06:21 PM #1
Junior Member
Joined
Oct 2008
Posts
41
Laplace Transform
I'm looking at my old Differential Equations textbook and struggling with a sticky point regarding Laplace transforms.
He defines the Laplace transform in the standard way, saying that the Laplace ... | 5 | [
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... | 27,093 | 27093 | |
How did this happen?
October 17th 2013, 08:01 PM #1
Newbie
Joined
Oct 2013
From
Arcata
Posts
3
How did this happen?
I am maximizing and minimizing the optimum. Once I had this quadratic function, f(x)=-[x^2-4x+4-4-2] the book says I factor it into vertex form. Giving me two equations in vertex form, ... | 4 | [
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trig function differenciation
August 5th 2012, 08:40 PM #1
Junior Member
Joined
Jul 2012
From
auckland
Posts
46
trig function differenciation
if y= 3sin(2x+3) show that y"+4y=0
and
if y= sinx + 2cosx show that y", + y""+y, +y =O
can some1 explain to me how to do these and solve them
... | 4 | [
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0.047607... | 27,095 | 27095 | |
t^3-3t+1 splits or is irreducible
April 15th 2010, 07:14 PM #1
Newbie
Joined
Feb 2010
Posts
12
t^3-3t+1 splits or is irreducible
Prove that for any field K, $t^3-3t+1$ splits or is irreducible in K.
Hint: show that any zero is a rational expression in any other zero.
Using the formula for the s... | 5 | [
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0.0130004882812... | 27,096 | 27096 | |
Concavity.
September 4th 2009, 08:19 PM #1
Member
Joined
Jul 2009
Posts
149
Concavity.
I have a question that asks , ''for what values of x is the function concave?"
Im unsure as to what this is asking, is it just asking if $f''(x) < 0$ the function is concave. and $f''(x) > 0$ the function is conve... | 4 | [
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... | 27,097 | 27097 | |
Orthogonal Vectors in a plane
June 14th 2013, 11:58 PM
linalg123
Orthogonal Vectors in a plane
Find two orthogonal vectors in the plane containing the points A(-5,3,-4) B(-4,-3,-1) and C(-2,5,3)
Ok so i have that
AB = <1,-6,3>
AC = <3,2,7>
AB X AC = n = determinant of the 3x3 matrix = -48i + 2j... | 4 | [
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-0.07080078... | 27,098 | 27098 | |
[SOLVED] Gmat question...
February 7th 2008, 06:27 PM #1
aj82da6
Guest
[SOLVED] Gmat question...
I need help with this problem from my practice gmat..
(1/5)^m times (1/4)^18 = 1/(2(10)^35)
and we are trying to find m
thank you for your help
$\left( \frac 15 \right)^m \cdot \left( \frac 14 \rig... | 4 | [
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