content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Statistic Final Exam - Student of Fortune
1. An automotive manufacturer claims the mean price of a small suv is at most $26,014. If a hypothesis
test is performed, how should you interpret a decision that (a) rejects the null hypothesis and (b) fails to
reject the null hypothesis... | 5 | [
0.057861328125,
0.10205078125,
0.03515625,
0.004180908203125,
0.04736328125,
0.032958984375,
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0.10791015625,
0.06396484375,
0.12255859375,
0.02001953125,
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0.0859375,
-0.0012969970703125,
-0.01214599609375,
-0.05029296875,
0.00823974609375,
-0.0... | 42,900 | 42900 | |
different approach on calculating flux threw area..
August 13th 2009, 08:35 AM #1
MHF Contributor
Joined
Nov 2008
Posts
1,401
different approach on calculating flux threw area..
calculate
$<br /> \iint_{M}^{}\vec{F}\vec{dS}<br />$
where
$<br /> \vec{F}=(e^y,ye^x,x^2y) <br />$
M is a part ... | 5 | [
0.07373046875,
0.0250244140625,
0.02099609375,
-0.08203125,
0.042724609375,
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0.0615234375,
-0.0458984375,
0.03662109375,
0.046630859375,
0.0093994140625,
0.0162353515625,
-0.01312255859375,
0.04150390625,
0.125,
0.0296630859375,
-0.00872802734375,
... | 42,901 | 42901 | |
geometric quantization
Context
Geometric quantization
Physics
Symplectic geometry
Background
Basic concepts
Classical mechanics and quantization
Contents
Idea
Geometric quantization is one formalization of the notion of quantization of a classical mechanical system/classical field theory to a quantum mechanica... | 4 | [
-0.078125,
0.0130615234375,
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0.051025390625,
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0.0123291015625,
0.043212890625,
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0.1015625,
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0.033935546875,
0.06787109375,
-0.0218505859375,
-0.0771484375,
0.0327148437... | 42,902 | 42902 | |
Posts from February 22, 2012 on Martin Widlake's Yet Another Oracle Blog
Posted by mwidlake in SQL.
Tags: SQL
15 comments
A colleague came to me a couple of days ago with a SQL problem. He had something like this:
@get_source
NAME INPUT
------------- -----
GROUP_1 5
GROUP_2 3
GROUP_3 4
GRO... | 5 | [
-0.045654296875,
-0.0634765625,
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-0.04736328125,
-0.06396484375,
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0.07666015625,
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0.0081787109375,
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0.01141357421875,
0.0869140625,
-0.051513671875,
-0.05322265625,
0.119140625,
-0.08154296875,
0... | 42,903 | 42903 | |
Range of b
June 17th 2011, 09:53 PM #1
Super Member
Joined
Dec 2009
Posts
755
Range of b
Given the curve $C$ has the equation $y=-x+(a-2b)-\frac{2b(a-2b)}{x-2b}$ and $a=1+2b$, find the range of values of $b$, such that the curve $C$ has 2 stationary points.
$\frac{dy}{dx}=-1+\frac{(a-2b)(2b)}{(x-2b)... | 5 | [
-0.044677734375,
-0.0400390625,
-0.0029144287109375,
-0.01373291015625,
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0.07373046875,
-0.0224609375,
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0.032958984375,
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0.00927734375,
-0.01171875,
0.01019287109375,
0.1044921875,
-0.017333984375,
-0.1132812... | 42,904 | 42904 | |
A Existence Problem of (p,q) metric
MathOverflow is a question and answer site for professional mathematicians. It's 100% free, no registration required.
My question is:
Can we judge a manifold that can admit a (p,q) metric?
up vote 2 down vote favorite I onl... | 4 | [
-0.0693359375,
-0.052978515625,
0.0107421875,
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0.09375,
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0.03125,
0.09716796875,
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0.054931640625,
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0.033203125,
-0.0267333984375,
-0.03857421875,
-0.0206298828125,
0.0... | 42,905 | 42905 | |
Lagrange Error
Estimate ln(1.3) using a third degree Taylor polynomial about a=0 and find the error bound.
note the series is alternating, so an error bound can be determined by the first omitted term of the Taylor polynomial. $\ln(1+x) \approx P_3(x) = x - \frac{x^2}{2} + \frac{x^3}{3}$ $\ln(1.3) \approx
P_3(0.3) = 0... | 5 | [
0.045654296875,
-0.05419921875,
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-0.0166015625,
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0.0419921875,
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-0.05078125,
-0.0213623046875,
-0.0033416748046875,
-0.06298828125,
-0.01... | 42,906 | 42906 | |
Verify level control criteria for multi-level cell flash memories and their applications
Abstract
In [1]M-bit/cell multi-level cell (MLC) flash memories, it is more difficult to guarantee the reliability of data as M increases. The reason is that an M-bit/cell MLC has 2^M states whereas a
single-level cell (SLC) has o... | 4 | [
-0.040283203125,
-0.01153564453125,
-0.060791015625,
0.06103515625,
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0.040771484375,
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0.0089111328125,
-0.054931640625,
0.0174560546875,
0.021240234375,
0.02233886... | 42,907 | 42907 | |
accumulate
Computes the sum of all the elements in a specified range including some initial value by computing successive partial sums or computes the result of successive partial results similarly obtained
from using a specified binary operation other than the sum.
template<class InputIterator, class Type>
Type ... | 4 | [
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0.01275634765625,
-0.035888671875,
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-0.09130859375,
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0.00445556640625,
0.00701904296875,
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0.00927734375,
0.0712890625,
-0.07861328125,
-0.1123046875,
0.037109375,
-0.032958984375,
... | 42,908 | 42908 | |
Math Help
March 9th 2008, 03:12 AM #1
Junior Member
Joined
May 2007
Posts
35
Hello
I'd like some help on derive a function and simplifying the expression as much as possible.
$f(x) = \frac{ln(5x^7)}{ln(x^3)}$
----
Here's my idea on how it ends up...
first, we can work a little bit... | 5 | [
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0.0142822265625,
0.09765625,
-0.00023746490478515625,
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0.0693359375,
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0.06884765625,
0.05322265625,
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-0.0257568359375,
0.0174560546875,
-0.0005950927734375,
0.0537109375,
-0.079589843... | 42,909 | 42909 | |
[SOLVED] differential equations
Compute the general solution of the linear inhomogeneous differential equation y' = $\frac{-y}{1 + x}+ 3x$ .
I fond the ingegrating factor to be 1+x and now I dont know where do to from there
It doesn't help to find the integrating factor if you don't know what an "integrating factor" ... | 5 | [
-0.05419921875,
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0.0625,
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0.048583984375,
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-0.0517578125,
0.057373046875,
... | 42,910 | 42910 | |
Prove that G is abelian iff...
November 15th 2009, 07:01 AM #1
Newbie
Joined
Nov 2009
Posts
4
Prove that G is abelian iff...
Prove that G is abelian if and only if the map $f: G \longrightarrow G$ given by $f(g)=g^2$ is a group homomorphism.
$f(g_{1} \cdot g_{2})=g_{1}g_{2}g_{1}g_{2}=g_{1}g_{1}g_{2}... | 4 | [
-0.0025482177734375,
0.049560546875,
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0.037109375,
0.00836181640625,
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0.0125732421875,
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-0.0216064453125,
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0.09130859375,
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-0.0478515625,
-0.04052734375,
0.0458984375,
0.06103515625,
-0.0274658203125,
0.053... | 42,911 | 42911 | |
Statistics with Excel
Basic Statistics with Excel
Outline – Excel as a Tool for . . .
Summarizing data
Fitting data (regression)
Hypothesis testing
This is a tutorial. It consists of both information and
exercises to introduce Excel as a tool for statistical
analysis... | 5 | [
0.044677734375,
0.01373291015625,
0.00958251953125,
-0.015869140625,
-0.049072265625,
0.058837890625,
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0.00732421875,
0.0030364990234375,
0.041015625,
0.024169921875,
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0.060302734375,
-0.07275390625,
0.016357421875,
0.0279541015625,
0.037353515625,
... | 42,912 | 42912 | |
Potential Research into Spatial Cancer Database by Using Data Clustering Techniques
(IJCSIS) International Journal of Computer Science and Information Security,
... | 4 | [
0.09130859375,
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0.037109375,
0.0179443359375,
0.0361328125,
0.039794921875,
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0.0260009765625,
0.10888671875,
0.05029296875,
-0.072265625,
-0.0167236328125,
-0.045166015625,
-0.... | 42,913 | 42913 | |
Equation of the tangent to the curve.
April 22nd 2009, 04:53 PM #1
Newbie
Joined
Jun 2008
Posts
9
Equation of the tangent to the curve. [Solved]
Find the Equation of the tangent to the curve of e^2y + xy= 4x + 1,
What I've done so far,
e^2y + xy= 4x + 1
e^2y + xy - 4x - 1 = 0
dy/dx = ... | 5 | [
-0.037841796875,
0.0218505859375,
0.03173828125,
-0.0225830078125,
0.040283203125,
-0.0263671875,
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0.056884765625,
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0.0016937255859375,
0.048828125,
0.003936767578125,
0.00848388671875,
-0.10986328125,
... | 42,914 | 42914 | |
fibonacci series mod a number
up vote 4 down vote favorite
2
I'm trying to write a program with an input of numbers $n$ and $k$ (where $n<10^{1000}$ and $k<10^9$), where I compute fib[n] % k. What is a good FAST way of computing this?
I realize that the resulting series is periodic, just not sure how to find it effic... | 4 | [
-0.057861328125,
0.06396484375,
-0.11669921875,
-0.029541015625,
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0.10400390625,
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0.0208740234375,
-0.0308837890625,
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-0.0277099609375,
0.0135498046875,
-0.06005859375,
-0.055419921875,
-0.06640625,
0.... | 42,915 | 42915 | |
Solving Fractions
November 24th 2009, 05:44 PM
purplec16
Solving Fractions
(1) $\frac{a+3}{3}+\frac{a-3}{6}=5$
(2) $\frac{3x+2}{2x-3}=\frac{3x-2}{2x-5}<br />$
(3) $\frac{4m}{m-2}-\frac{13}{3m-6}=\frac{1}{3}$
(4) $\frac{1}{t-5}+\frac{1}{t+5}=\frac{8}{t^2-25}$
(5) $\frac{3}{2b+4}-\frac{4}{b-2}=... | 4 | [
-0.041748046875,
-0.03759765625,
0.03466796875,
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0.020751953125,
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0.004180908203125,
-0.01361083984375,
0.03173828125,
0.013427734375,
-0.07275390625,
0.00640869140625,
-0.00194549560546875,
0.00494384765625,
0.11572265625,
-0.00665283203... | 42,916 | 42916 | |
Second order non homogeneous diff. equation at constant coefficients
Hi there. I had some trouble trying to solve this:
$y''+y=\cos x +3\sin \color{red}2x$ (1)
At first I just found the solution for the homogeneous equation:
$y_h=e^{\lambda x} \rightarrow \lambda^2+1=0 \rightarrow \lambda_1,\lambda_2=... | 5 | [
-0.0830078125,
-0.06591796875,
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0.11181640625,
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0.01458740234375,
0.0035858154296875,
0.07275390625,
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-0.04052734375,
0.020751953125,
-0.04296875,
0.0028533935546875,
-0.0299... | 42,917 | 42917 | |
Find all values of K for which the system of linear equations..
February 26th 2011, 04:59 PM
Oiler
Find all values of K for which the system of linear equations..
Three planes have the following equations...
$x+2y+z = 3$
$3x+4y+5z=k$
$2x-y+kz=1$
$\[<br /> \emph{Augumented Matrix} =<br /> \left(... | 4 | [
-0.027587890625,
0.00093841552734375,
-0.0869140625,
-0.06298828125,
0.030517578125,
-0.031005859375,
0.038818359375,
-0.07080078125,
0.0023040771484375,
0.087890625,
0.01336669921875,
-0.060546875,
0.058349609375,
-0.050537109375,
-0.099609375,
0.048095703125,
-0.039794921875,
-0.... | 42,918 | 42918 | |
Arithmetic fixed point theorem
up vote 26 down vote favorite
17
I want to understand the idea of the proof of the artihmetic fixed point theorem. The theorem is crucial in the proof of Gödel's first Incompletness theorem.
First some notation: We work in $NT$, the usual number theory, it has implemented all primitve r... | 4 | [
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0.01177978515625,
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0.138671875,
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0.038818359375,
0.08984375,
0.021484375,
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0.0244140625,
-0.0054931640625,
-0.07958984375,
-0.00473022460... | 42,919 | 42919 | |
How do you solve this integral?
August 8th 2008, 04:40 PM #1
Junior Member
Joined
Feb 2008
Posts
25
How do you solve this integral?
$\int_{1}^{2} 1/(x+1)^2 \: dx$
not sure how to solve an integral with a quantity squared in the denominator. I'm new to integration. do you foil the bottom or rewrite i... | 5 | [
0.01385498046875,
0.0013275146484375,
0.07861328125,
0.01324462890625,
-0.01190185546875,
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-0.06787109375,
-0.01422119140625,
0.0238037109375,
0.01275634765625,
0.0155029296875,
-0.0216064453125,
-0.037841796875,
0.07470703125,
-0.038818359375,
0.004241943359375,
0.09277... | 42,920 | 42920 | |
find dy/dx
July 27th 2010, 11:17 AM
action812
find dy/dx
consider the cardioid r=1+sin(t) remember that x=rcos(t) and y=rsin(t)
which means x = (1+sin(t))cos(t)
and y = (1+sin(t))sin(t)
now dy/dx : [ (dy/dt) // (dx/dt) ]
should i use chain rule on the x and y, or would i just distrube the cos ... | 5 | [
-0.1416015625,
0.03076171875,
-0.01202392578125,
0.0269775390625,
0.0625,
-0.0201416015625,
-0.050048828125,
0.06787109375,
-0.0252685546875,
0.00982666015625,
0.0576171875,
0.0361328125,
-0.01470947265625,
0.099609375,
0.0234375,
-0.01409912109375,
-0.0966796875,
0.01361083984375,... | 42,921 | 42921 | |
LaGrange Multipliers
November 1st 2008, 04:26 PM
JonathanEyoon
LaGrange Multipliers
Grrr... This problem has been stressing me out for the past half hour
Find the extreme values of f(x,y) = xy on the ellipse ((x^2)/8) + ((y^2)/2) = 1
i've gone ahead and figured out the gradient f and g and ended up w... | 5 | [
0.0208740234375,
-0.03955078125,
0.00762939453125,
-0.0294189453125,
0.034423828125,
0.0179443359375,
-0.0849609375,
0.0869140625,
-0.03466796875,
-0.052001953125,
0.0712890625,
0.036865234375,
-0.006134033203125,
0.026611328125,
-0.01104736328125,
0.1455078125,
-0.0062255859375,
-... | 42,922 | 42922 | |
Dilogarithm, tetrahedrons, and hyperbolic space
up vote 2 down vote favorite
1
The Bloch-Wigner function $D(z)$, gives the volume of a ideal tetrahedron in hyperbolic space $\mathbb H3$, where z is the cross-ratio (z1,z2,z3,z4) parametrizing the tetrahedron in $\mathbb CP1$.
$D(z)= \tilde D(z1,z2,z3,z4)$
Relating to ... | 4 | [
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0.047607421875,
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0.01519775390625,
0.0203857421875,
0.04736328125,
-0.00994873046875,
0.043212890625,
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-0.00970458984375,
-0.0458984375,
-0.01019287109375,
-0.016357421875,
-0.012084960... | 42,923 | 42923 | |
Integration by parts
From Encyclopedia of Mathematics
2010 Mathematics Subject Classification: Primary: 26A06 [MSN][ZBL]
One of the methods for calculating integrals. Consider a continuous function $u:[a,b]\to \mathbb R$ and a continuously differentiable function $v:[a,b]\to \mathbb R$. If $U$ is a primitive of $u$,... | 4 | [
-0.0013275146484375,
0.03076171875,
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-0.08203125,
0.038818359375,
0.037109375,
-0.0045166015625,
-0.0157470703125,
-0.07470703125,
0.032958984375,
-0.0269775390625,
0.054931640625,
0.019287109375,
0.037109375,
0.0361328125,
0.0126953125,
-0.036865234375,
0.0296630859... | 42,924 | 42924 | |
Find the Lines that are tangent and normal to curve at given point.
November 12th 2009, 12:46 PM
Cyberman86
Find the Lines that are tangent and normal to curve at given point.
Find the Lines that are Tangent and Normal to the Curve at the given points.
x^2+xy-y^2 = 11 , (3,1)
a) Give the equation that... | 5 | [
-0.048095703125,
-0.05908203125,
-0.02099609375,
-0.0012969970703125,
0.0498046875,
0.005615234375,
-0.0185546875,
0.07080078125,
-0.08056640625,
0.0166015625,
0.10693359375,
-0.040771484375,
-0.0079345703125,
0.04736328125,
-0.00811767578125,
0.059326171875,
-0.0791015625,
-0.0286... | 42,925 | 42925 | |
Water is flowing at a rate of 5 m^3/s into the conical tank
February 6th 2009, 12:55 PM #1
Newbie
Joined
Feb 2009
Posts
21
Water is flowing at a rate of 5 m^3/s into the conical tank
Water is flowing at a rate of 5 m^3/s into the conical tank. (The conical tank looks like this: the whole height of the co... | 5 | [
-0.052734375,
0.07763671875,
-0.0023345947265625,
-0.049072265625,
0.011474609375,
-0.005401611328125,
-0.046630859375,
0.037841796875,
-0.02294921875,
0.0184326171875,
-0.01513671875,
-0.031005859375,
0.055419921875,
0.07958984375,
-0.029541015625,
-0.018310546875,
-0.09765625,
-0... | 42,926 | 42926 | |
Best approach to solve this PDE
up vote 2 down vote favorite
I need to solve this Partial Differential Equation for $\lambda(x,y)$,
$$\frac{\partial \lambda}{\partial x} + h(x,y)\frac{\partial \lambda}{\partial y} - \lambda \frac{\partial h}{\partial y} = 0$$ where $$\frac{dy}{dx} = h(x,y).$$
The additional informat... | 5 | [
-0.035888671875,
0.00185394287109375,
-0.02197265625,
-0.01446533203125,
-0.02734375,
0.0001239776611328125,
-0.01904296875,
-0.06640625,
-0.06396484375,
-0.033935546875,
0.044921875,
0.01507568359375,
-0.06494140625,
0.06591796875,
0.154296875,
0.06982421875,
-0.029541015625,
-0.0... | 42,927 | 42927 | |
n-fold integral
May 17th 2010, 05:44 AM #1
Newbie
Joined
Nov 2009
Posts
10
n-fold integral
Can anyone give me any suggestion of how to solve this integral? Or better - has anyone seen any solution to this kind of integral?
$<br /> \int_0^1\int_0^1\cdots \int_0^1\frac{1}{\left( c+x_{1}+x_{2}+\cdots ... | 4 | [
-0.10546875,
-0.04150390625,
0.047607421875,
-0.053955078125,
0.006561279296875,
-0.032958984375,
0.021484375,
0.052001953125,
-0.06787109375,
0.0400390625,
-0.11328125,
-0.04150390625,
-0.00982666015625,
-0.042236328125,
-0.06298828125,
0.10302734375,
-0.026611328125,
0.0407714843... | 42,928 | 42928 | |
need help with Induction
Sum of n=1 to N of 1/sqrt(n) > sqrt(N) for N>= 2. Thanks for any help.
Last edited by alpha; January 19th 2010 at 08:29 AM.
Clearly $N<N+1$ for all $N\geq 2$. Then $\sqrt{N}<\sqrt{N+1}$ $\implies$$N<\sqrt{N}\sqrt{N+1}$ $\implies$$N+1-\sqrt{N}\sqrt{N+1}<1$ $\implies$$\sqrt{N+1}-\sqrt{N}<\frac{... | 5 | [
-0.01165771484375,
-0.0250244140625,
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0.0625,
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0.0185546875,
0.00092315673828125,
-0.0294189453125,
0.059814453125,
-0.0087280273... | 42,929 | 42929 | |
Geometric Sum, involving complex numbers
June 3rd 2011, 03:59 PM #1
Member
Joined
Mar 2011
Posts
99
Hi Forum!
I came across an exercise involving both geometric sum and complex numbers.
I've read through Wikipedia and found: The summation formula for geometric series remains valid even when the ... | 4 | [
-0.0830078125,
0.006591796875,
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0.087890625,
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-0.007720947265625,
0.006805419921... | 42,930 | 42930 | |
Rewriting expressions with logic laws (2)
April 9th 2010, 11:25 PM #1
Super Member
Joined
Oct 2007
From
Santiago
Posts
517
Rewriting expressions with logic laws (2)
Rewrite: $(p \wedge (q \to (p \vee (p \wedge q)))) \wedge q$ and determine if its tautology, contradiction or neither. Using truth table... | 4 | [
-0.040771484375,
-0.0003986358642578125,
0.080078125,
-0.0262451171875,
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0.029052734375,
0.125,
0.08251953125,
0.07470703125,
-0.041015625,
0.0029754... | 42,931 | 42931 | |
Equation Help
(x-y)y'=(x+y) I've tried v=y/x and v=x-y, and both times it has just ended up as a mess.
the solution Mathematica is pumping out seems to indicate that v=y/x was the right way to go. you can certainly separate the equation that way $$(x-y)y'=(x+y)$$ $$v=\frac{y}{x}$$ $$y=v x$$ $$y'=x
v'+v$$ $$(x-v x)(x v... | 5 | [
-0.0234375,
0.0216064453125,
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0.0260009765625,
-0.057861328125,
0.03759765625,
-0.005462646484375,
0.045654296875,
0.0084228515625... | 42,932 | 42932 | |
ODE Implicit BVP ETH Zrich Eidgenssische Technische pellet
Integration of Ordinary
Differential Equations
dy/dt = f(t,y)
Marco Lattuada
Swiss Federal Institute of Technology - ETH
Institut für Chemie und Bioingenieurwissenschaften
ETH Höng... | 5 | [
-0.11181640625,
0.0196533203125,
0.0361328125,
0.003692626953125,
0.01531982421875,
0.0079345703125,
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0.06103515625,
-0.05908203125,
-0.0281982421875,
0.00994873046875,
-0.07275390625,
0.04296875,
-0.060302734375,
0.00885009765625,
-0.02197265625,
-0.013427734375,
-... | 42,933 | 42933 | |
Is there a quantum Hermite reciprocity?
up vote 6 down vote favorite
4
It is well known that there is an isomorphism of $SL_2=SL(V)$ representations $$ Sym^n(Sym^m(V))\simeq Sym^m(Sym^n(V)) $$ called Hermite reciprocity (discovered in 1854). My question is: Is there
anything like this isomorphism for $U_q(sl_2)$, at l... | 4 | [
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-0.056640625,
-0.02685546875,
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0.09619140625,
0.0252685546875,
0.03369140625,
-0.0169677734375,
0.038... | 42,934 | 42934 | |
Is there a "quantum" Riemann zeta function?
up vote 24 down vote favorite
10
Occasionally I find myself in a situation where a naive, non-rigorous computation leads me to a divergent sum, like $\sum_{n=1}^\infty n$. In times like these, a standard approach is to guess the
right answer by assuming that secretly my non-... | 5 | [
-0.1787109375,
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0.0966796875,
0.02734375,
0.04... | 42,935 | 42935 | |
Predicate Calculus with Domains
February 18th 2013, 12:04 PM #1
Junior Member
Joined
Nov 2012
From
Manchester
Posts
30
Predicate Calculus with Domains
Hello, I have the following problem, but I don't know how to approach this.
Given the domain: {a, b, c},
and the following predicates:
P ... | 5 | [
-0.01007080078125,
0.02392578125,
0.0069580078125,
-0.0712890625,
-0.02294921875,
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0.041259765625,
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0.033203125,
0.107421875,
0.1259765625,
0.1259765625,
-0.0286865234375,
0.000448226928710937... | 42,936 | 42936 | |
Stock price Option profits
Call Option Example
• Suppose that at the February expiry date we
hold one April $6 ABC Inc. call (the exercise
price is $6). If the price of a share in ABC Inc.
is S = $7, would the call be exercised?
A: Yes (buy @ $6 and sell @ $... | 5 | [
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0.01806640625,
-0.03955078125,
-0.026123046875,
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0.038818359375,
0.0625,
0.017822265625,
0.0029754638671875,
0.052734375,
-0.07080078125,
0.0242919921875,
0.0341796875,
-0.034423828125,
-0.044921875,
-0.07568359375,
-0.100097... | 42,937 | 42937 | |
Equivalence Relations
Date: 05/06/2003 at 17:32:13
From: Kerri
Subject: Equivalence Relations
I have a question about Equivalence relations.
Determine with proof which of the three equivalence relation
properties hold for the following relation.
(a) Let R be the relation on the set A={1,2,3,4} defined by
R = {(... | 4 | [
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0.06640625,
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0.045166015625,
0.04736328125,
0.0235595703125,
0.0145263671875,
... | 42,938 | 42938 | |
dy
Got Homework?
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Aryang Group Title
prove that x^8 -x^7 + x... | 5 | [
-0.0458984375,
0.10009765625,
0.0306396484375,
-0.00689697265625,
-0.03173828125,
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0.05615234375,
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0.04150390625,
-0.037109375,
0.05078125,
-0.004241943359375,
-0.... | 42,939 | 42939 | |
Something simple about integral theorey but I don't get it.
February 6th 2010, 10:40 AM
s3a
Something simple about integral theorey but I don't get it.
Question:
"If f is continuous and if this (integral (f(x)dx) from 0 to 4 - Wolfram|Alpha) integral = 10. Then find, this(integral (f(2x)dx) from 0 to 2 - Wol... | 4 | [
0.0673828125,
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0.019775390625,
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0.05078125,
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0.0830078125,
-0.11572265625,
0.0048828125,
0.0390625,
-0.016357421875,
-0.052001953125,
0.06494140625,
-0.06494140625,
0.040283203125,
-0.047607421875,
-0.015869140625,... | 42,940 | 42940 | |
Need help with 5th degree equation please!
July 9th 2009, 11:50 PM #1
Newbie
Joined
Jul 2009
Posts
4
Need help with 5th degree equation please!
Hey all! I am new here and this site has been recommended by a friend of mine. I have been given a Math problem to solve but since I haven't had any Math practic... | 5 | [
-0.0908203125,
-0.0322265625,
-0.04443359375,
0.0107421875,
0.0103759765625,
0.0289306640625,
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0.011474609375,
-0.008544921875,
0.023193359375,
0.00141143798828125,
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0.00023746490478515625,
0.109375,
0.0189208984375,
0.0311279296875,
-0.0712890625,... | 42,941 | 42941 | |
Math Help
January 10th 2011, 04:04 PM #16
Well my argument was was that the $\theta$ i've got is a continuous linear functional, and $\sin n$ is in the kernel for all $n$, except when $n = 1$. However $\theta(\cos 2x) ot= 0$ hence is not
in the kernel. The kernel is closed by continuity, hence any sequence in... | 4 | [
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0.0625,
0.041748046875,... | 42,942 | 42942 | |
6 Inferring a Binomial Proportion via Gr
102 CH A P T E R 6: Inferring a Binomial Proportion via Grid Approximation values. In this situation, we do not need a mathematical function of the prior over ; we can specify any prior probability
values we desire at each of the values. Moreover, we do not need to do any analyt... | 4 | [
-0.0020599365234375,
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0.0869140625,
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0.047607421875,
-0.0478515625,
-0.016845703125,
-0.005279541015625,
0.03149414062... | 42,943 | 42943 | |
introducing_power
AP Statistics Name
A Powerful Problem
Consider the scenario in which a cereal company claims that 20% of all its cereal boxes contain a
voucher for a free DVD rental. A group of ... | 5 | [
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0.1279296875,
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0.0233154296875,
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0.09521484375,
-0.014... | 42,944 | 42944 | |
Newlander-Nirenberg for surfaces
up vote 6 down vote favorite
2
Quite a long ago, I tried to work out explicitly the content of the Newlander-Nirenberg theorem. My aim was trying to understand wether a direct proof could work in the simplest possible case, namely
that of surfaces. The result is that the most explicit ... | 4 | [
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0.01806640625,
-0.0164794921875,
-0.007354736328125,
-0.03515625... | 42,945 | 42945 | |
Probability question
September 19th 2013, 06:06 PM
deSitter
Probability question
I'm just having some difficulty working out how to begin with regards to the following question - "A group of dogs managed to escape from an enclosure. Find the smallest number of dogs in the
group if the probability that at lea... | 5 | [
0.0986328125,
-0.0034942626953125,
0.0849609375,
0.05615234375,
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0.046875,
0.0234375,
0.01275634765625,
0.0234375,
-0.087890625,
-0.028564... | 42,946 | 42946 | |
Exponential Differentiation
November 1st 2009, 11:20 AM #1
Newbie
Joined
Oct 2009
Posts
15
In studying salmon populations, a model often used is the Ricker equation which relates the size of a fish population this year,
x to the expected size next year y. (Note that these populations do not change co... | 4 | [
-0.0830078125,
-0.0166015625,
0.054931640625,
-0.0238037109375,
-0.01434326171875,
-0.0031280517578125,
-0.0047607421875,
0.0322265625,
0.0205078125,
0.07421875,
0.10498046875,
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0.047607421875,
0.0361328125,
0.09814453125,
-0.1025390625,
-0.06982421... | 42,947 | 42947 | |
Hochschild-Kostant-Rosenberg theorem
Context
Algebra
Algebraic theories
Algebras and modules
Higher algebras
Model category presentations
Geometry on formal duals of algebras
Theorems
Cohomology
Special and general types
Special notions
Variants
Operations
Theorems
Contents
Idea
The Hochschild-Kostant-R... | 4 | [
-0.09716796875,
0.0517578125,
-0.00138092041015625,
0.002685546875,
-0.001678466796875,
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0.0166015625,
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0.06201171875,
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0.00689697265625,
0.09130859375,
0.05517578125,
-0.0771484375,
0.05... | 42,948 | 42948 | |
Do real vectors attain matrix norms?
up vote 6 down vote favorite
I apologize if the following question ends up being too elementary for this website; I asked it on math.SE a week ago and it remains unanswered.
Let $A$ be an $n \times n$ matrix with real entries and let $p \geq 1$. I'm wondering if $$ \max_{ x \in \m... | 5 | [
-0.0162353515625,
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0.0291748046875,
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0.0096435546875,
-0.031005859375,
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0.142578125,
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0.04931640625,
-0.0081787109375,
0.02490234375,
0.0732421875,
-0.... | 42,949 | 42949 | |
Principal Axis Method
WOLFRAM LANGUAGE TUTORIAL
Principal Axis Method
Gauss–Newton and conjugate gradient methods use derivatives. When the Wolfram Language cannot compute symbolic derivatives, finite differences will be used. Computing derivatives with finite
differences can impose a significant cost in some cases a... | 4 | [
-0.0267333984375,
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0.025146484375,
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0.05859375,
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0.038818359375,
-0.00106048583984375,
-0.028564453125,
0.0003070831298828125,
-0.0186767578125,
... | 42,950 | 42950 | |
Pre-Cal: Deriviatives & Graph Line Tangent
November 24th 2008, 10:32 PM #1
Newbie
Joined
Nov 2008
Posts
2
Pre-Cal: Deriviatives & Graph Line Tangent
Please can some one help me with these 3 Problems I am lost...
I Greatly Appreciated!
Find f’(x) and simplify
f(x) = (x^2-1/ √x)^4
f(x) ... | 5 | [
0.0174560546875,
0.0245361328125,
0.05029296875,
-0.0147705078125,
-0.00054168701171875,
-0.014404296875,
-0.037841796875,
0.034912109375,
0.000885009765625,
0.04638671875,
0.08349609375,
-0.0927734375,
0.0177001953125,
0.08740234375,
-0.0419921875,
0.0732421875,
-0.058349609375,
-... | 42,951 | 42951 | |
Intersect
April 12th 2008, 09:41 AM
fastman390
Intersect
find the value of k such that the line x-1 = y-2 = z-k and the plane
3 1 5
2x-y-z+10 = 0 intersect only at one pin .
April 12th 2008, 10:01 AM
TheEmptySet
Quote:
I don't have time for a full solution,but try this
converted the sym... | 4 | [
-0.1328125,
-0.031494140625,
-0.0245361328125,
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0.037841796875,
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0.0198974609375,
-0.041259765625,
0.072265625,
0.019287109375,
-0.031982421875,
0.0155029296875,
0.035888671875,
-0.08642578125,
0.052734375,
-0.07470703125,
-0.095214843... | 42,952 | 42952 | |
Root 2 recursion proof help
August 26th 2009, 05:23 AM #1
Junior Member
Joined
Aug 2009
Posts
36
Root 2 recursion proof help
f(n) is defined by setting f(1) = 2 and
f(n) = 0.5( f(n-1)+ 2/(f(n-1)))
I need to prove that f(n)^2 will always be bigger than 2, I tried doing this by finding and expres... | 5 | [
0.01544189453125,
-0.004974365234375,
0.0380859375,
0.059326171875,
-0.0299072265625,
0.0081787109375,
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0.10498046875,
0.07861328125,
0.01348876953125,
-0.006805419921875,
-0.021728515625,
0.01104736328125,
0.04443359375,
-0.049072265625,
0.0361328125,
0.0011520385742187... | 42,953 | 42953 | |
Finding the convolution analytically (or graphically)
April 18th 2013, 04:56 PM
iqbalmmz
Finding the convolution analytically (or graphically)
Hi everyone
This question is from my Signals and Systems class, its an EE course so I'm not sure if this question is appropriate for this "Applied Math" section but ... | 5 | [
-0.0908203125,
-0.00885009765625,
0.03076171875,
-0.05029296875,
0.037109375,
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0.029296875,
-0.039794921875,
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0.08203125,
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0.0234375,
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-0.0673828125,
-0.0140380859375,
-0.08056640625,
-0.0... | 42,954 | 42954 | |
Question about hereditary $C^*$-algebra.
up vote 7 down vote favorite
1
Can anyone give me a relatively simple proof or Some reference for the following fact.(I know that there is a proof of this theorem in Gerard J. Murphy'book: "$C^*$-Algebras and Operator Theory", but
I'm sure that there should be a simple proof of... | 4 | [
-0.130859375,
-0.0023040771484375,
0.0029296875,
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0.03759765625,
-0.0284423828125,
-0.035400390625,
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-0.04052734375,
-0.0027008056640625,
-0.0125732421875,
-0.05224609375,
0.038818359375,
-0.044189453125,
0... | 42,955 | 42955 | |
Orthogonal Matrix problems
March 9th 2010, 12:03 PM
Runty
Orthogonal Matrix problems
This problem I have partially solved, but I'm having issues concerning format and proper proofs. The question is listed below.
Let $A$ and $B$ be orthogonal $n\times n$ matrices. Determine which of the following are orthogo... | 5 | [
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0.041748046875,
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0.0272216796875,
0.080078125,
0.00469970703125,
0.037353515625,
0.01904296875,
0.058837890625,
-0.06005859375,
0.11669921875,
0.061767578125,
-0.015869140625,
-0... | 42,956 | 42956 | |
Japanese Geometry
February 28th 2009, 07:14 PM
realintegerz
Japanese Geometry
We have been assigned this math problem (22) and I'm having some trouble solving it.
Sacred Mathematics: Japanese Temple ... - Google Book Search
It wants me to show that R=2t, and I know so far that the sides of the square a... | 4 | [
-0.022705078125,
0.0595703125,
-0.033935546875,
0.055419921875,
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0.115234375,
0.03515625,
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0.0703125,
-0.01611328125,
-0.03857421875,
0.1142578125,
0.05517578125,
-0.048828125,
-0.06494140625,
-0.004486083984375,... | 42,957 | 42957 | |
Homework Help
Posted by jay on Monday, November 7, 2011 at 7:58pm.
fourth degree polynomial p(x) whose graph is symmetric about the y-axis, and which has a y-intercept of 10, and global maxima at (1,13) and (-1, 13).
• calculus - bobpursley, Monday, November 7, 2011 at 8:05pm
If it is even, P(x)=ax^4+bx^2+c
... | 4 | [
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0.06591796875,
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-0.05932... | 42,958 | 42958 | |
Quadratic forms
August 16th 2007, 02:05 AM #1
Newbie
Joined
Aug 2007
Posts
2
Quadratic forms
If X=[x1,x2,...,xn]' where x1+x2+...+xn=1.
If A1,A2,...,An are nXn square matrices, all elements are greater than 0 and less than 1.
The sum of all elements of A1 is n. It is also true for A2,...,An.
... | 5 | [
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0.00469970703125,
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0.032958984375,
0.03076171875,
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0.0211181... | 42,959 | 42959 | |
Making $5 Using 50 Coins
Date: 12/02/2005 at 15:41:47
From: Haley
Subject: 50 coins = $5
How many ways can you make $5 with 50 coins, without dimes? My dad
and I found 26, but my teacher says 37 is the most. My dad made an
Excel page to help me but I'm stuck. It was for extra credit, but I
would like to know the o... | 4 | [
0.008056640625,
0.11376953125,
0.0284423828125,
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0.021240234375,
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0.02294921875,
0.04541015625,
0.04296875,
-0.0169677734375,
-0.00... | 42,960 | 42960 | |
1. Determinants
by M. Bourne
Before we see how to use a matrix to solve a set of simultaneous equations, we learn about determinants.
A determinant is a square array of numbers (written within a pair of vertical lines) which represents a certain sum of products.
Below is an example of a 3 × 3 determinant (it has 3 ... | 4 | [
-0.056396484375,
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0.053466... | 42,961 | 42961 | |
Prove that `a_ n in (0,1)`
`a_(n+1)=(1 - sqrt a_n)`
`a_1 in (0,1)` - Homework Help - eNotes.com
Prove that `a_ n in (0,1)`
`a_(n+1)=(1 - sqrt a_n)`
`a_1 in (0,1)`
You need to use mathematical induction to test if `a_n in (0,1), ` hence, you need to perform the two steps, starting with the base case, such that:
`a_1... | 4 | [
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-0.0001735687255859375,
-0.037353515625,... | 42,962 | 42962 | |
Substitution question
June 22nd 2009, 07:39 PM #1
Newbie
Joined
Jun 2009
Posts
3
Substitution question
I've been stuck on this problem all day and can't seem get my solution to match the one in my textbook.
Use the appropriate method of substitution to solve the equation:
$xdx + (y-2x)dy = 0$
... | 5 | [
-0.05419921875,
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-0.01324462890625,
-0.03088378... | 42,963 | 42963 | |
sum/difference of two normal variables
May 26th 2010, 02:53 AM
avfc88
sum/difference of two normal variables
1. The problem statement, all variables and given/known data
I have Bt+s ~ N (0, t+s) and Bs ~ N(0,s).
I want to find the mean and variance of Bt+s + Bt+s - Bs - Bs.
2. Relevant equations
... | 5 | [
-0.03271484375,
0.0145263671875,
0.0341796875,
0.05224609375,
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0.058349609375,
-0.0228271484375,
-0.0081787109375,
-0.00946044921875,
0.02380371... | 42,964 | 42964 | |
NCERT Solutions for Class 9th Science: Chapter 9 Force and Laws of Motion
National Council of Educational Research and Training (NCERT) Book Solutions for Class 9
Subject: Science
Chapter: Chapter 9 – Force and Laws of Motion
Class 9 Science Chapter 9 Force and Laws of Motion NCERT Solution is given below.
Question ... | 4 | [
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0.05712890625,
0.0172119140625,
0.01116943359375,
0.0027008056640625,
0.030273437... | 42,965 | 42965 | |
Math Help
October 20th 2008, 10:37 AM #1
Coin toss
A horizontal flat square board 6 inches width is ruled with a grid of fine lines, 2 inches apart and has a vertical rim like a carrom board, all around the edge. If a coin of diameter 2/3 inches
is tossed on to the board. What is the probability that it rest... | 4 | [
0.0693359375,
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0.0263671875,
-0.0012054443359375,
-0.0260009765625,
-0... | 42,966 | 42966 | |
Bounds on strong vertex colourings of regular hypergraphs?
up vote 4 down vote favorite
What are the best results for upper bounds on the number of colours required in a strong vertex colouring of a regular hypergraph H?
• A regular hypergraph is one in which every vertex is contained in k edges, for some constant ... | 4 | [
0.044189453125,
0.06982421875,
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0.0069580078125,
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0.0634765625,
0.00738525390625... | 42,967 | 42967 | |
0.999… does not equal 1
Introduction
Yes it is. 0.999… is equal to 1.
Before we begin our discussion, let me make a remark that the symbol “…” in the decimal 0.999… means that the there are infinitely many 9′s, or putting it in plain language, the decimal number has
no end.
For non-math persons, you will probably ... | 5 | [
-0.07861328125,
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0.045166015625,
0.03662109375,
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0.1064453125,
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0.03125,
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-0.044677734375,
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-0.01214599609375,
0.036865234375,
0.0551757... | 42,968 | 42968 | |
Running Rates, Line Segments, and Basic Algebra
Date: 6/26/96 at 17:2:57
From: Anonymous
Subject: Running Rates, Line Segments, and Basic Algebra
Problem No. 1:
Steven ran a 12-mile race at an average speed of 8 miles per hour. If
Adam ran the same race at an average speed of 6 miles per hour, how
many minutes long... | 4 | [
0.00042724609375,
0.068359375,
0.0458984375,
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0.0240478515625,
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0.043701171875,
0.031494140625,
0.044921875,
-0.0625,
0.00689697... | 42,969 | 42969 | |
Math Help
April 12th 2012, 02:43 PM #1
Homomorphisms
Let $G_1$ and $G_2$ be groups with identities $e_1$ and $e_2$, respectively. Let $f: G_1 \to G_2$ be a homomorphism of groups. Let $K$ be the kernel of $f$. Let $x \in K$. Which of the following
is/are necessarily true?
a) $x = e_1$
b) $x = e_2$
... | 5 | [
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0.10546875,
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0.00011157989501953125,
-0.033447265625,
0.094... | 42,970 | 42970 | |
Does any textbook take this approach to the isomorphism theorems?
up vote 14 down vote favorite
10
Below, I present an outline of a proof of the first isomorphism theorem for groups. This is how I usually think of the first isomorphism theorem for ______, but groups will get the points across. My
question is whether t... | 4 | [
-0.0771484375,
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0.02... | 42,971 | 42971 | |
H-space structure on infinite projective spaces
up vote 9 down vote favorite
4
Any Eilenberg-MacLane space $K(A,n)$ for abelian $A$ can be given the structure of an $H$-space by lifting the addition on $A$ to a continuous map $K(A\times A,n)=K(A,n)\times K(A,n)\to K(A,n)$.
Does somebody know an explicit way to descri... | 4 | [
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0.0027618408203125,
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0.03369140625,
-0.0546875,
0.024... | 42,972 | 42972 | |
An exterior angle theorem for n-dimensional polytopes?
up vote 2 down vote favorite
1
In the plane, the exterior angle of a vertex is $\pi -$ the standard ("interior") angle, which may be negative in some cases. The following is true for non-weird polygons:
The sum of the exterior angles at each vertex is a full ... | 4 | [
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0.0224609375,
0.04125976562... | 42,973 | 42973 | |
Vector space problem (lin. algebra)
April 17th 2007, 10:37 AM
buckaroobill
Vector space problem (lin. algebra)
If anyone could explain how the following problem is done, I would really appreciate it!
Here is a vector candidate. The set is R, and we define scalar multiplication by ax = a * x (usual scalar mu... | 4 | [
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-0.0277099609375,
... | 42,974 | 42974 | |
Find a N so that an integral is convergent
May 11th 2011, 06:37 PM
nvwxgn
Find a N so that an integral is convergent
I can't work this out. Any help would be greatly appreciated.
Find n so that the following integral is convergent.
http://www.texify.com/img/%5CLARGE%5...29%5C%2Cdx.gif
Answer: n = ... | 5 | [
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0.0166015625,
-0.0010681152343... | 42,975 | 42975 | |
S
CS 61B: Data Structures (Spring 2012)
Final Exam
Solutions
Problem 1. (7 points) A miscellany.
b. f(x) = x^2, g(x) = x.
c. Yes, the code compiles without errors. The class LordOfTheRings provides an implementation of the abstract method makeStory in the Java interface Twilight. The two declarations of makeStory h... | 5 | [
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-0.07470703125,
0.0947265... | 42,976 | 42976 | |
Graphing Limits
Date: 09/12/2001 at 13:43:47
From: Justin Morrisroe
Subject: Calculus-Limits
I was hoping you could explain the concept of "limits" and how to read
them from graphs, and why substituting the "c"# into the equation
doesn't always work
(i.e. lim (x^2-1)/(x+1) )
x-->1
the answer is 2, but I di... | 4 | [
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-0.003448486328125,
-0... | 42,977 | 42977 | |
Function approaching standard normal distribution
May 1st 2010, 09:29 PM
gralla55
Function approaching standard normal distribution
I want to show that this function:
(P^ - p) / (root)((p(1-p))/n)
will approximate the standard normal distribution. Here P^ is an unbiased estimator for p, and p is the pr... | 4 | [
0.0091552734375,
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-0.08007... | 42,978 | 42978 | |
Filling in a rational orthogonal matrix given one row
up vote 5 down vote favorite
Quick version: given natural $n$ and a row of $n$ integers such that the sum of the squares is another square, call it $m^2.$ For $n=5,6,7$ is it always possible to fill in the rest of an $n$ by $n$
matrix of integers, call it $M,$ so t... | 4 | [
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0.119140... | 42,979 | 42979 | |
Fermat's Last Theorem for Polynomials
Posted by: Alexandre Borovik | May 24, 2008
Fermat’s Last Theorem for Polynomials
An old post by Nick Halloway at sci.math:
Someone mentioned to that an analog of FLT is true in $\mathbb{C}[x]$ as well, i.e. there are no relatively prime [non-constant] polynomials $a(x)$, $b... | 5 | [
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-0.0830078125,
0.0449218... | 42,980 | 42980 | |
Implementing Cordic Algorithms
IMPLEMENTING CORDIC ALGORITHMS
Pitts Jarvis
Pitts Jarvis is a senior engineer at 3Com Corporation. He can be reached at 1275 Martin Ave., Palo Alto, CA 94301.
Efficiently computing sines, cosines, and other transcendental functions is a process about which many programmers are blissful... | 5 | [
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0.01129150390625,
-0.1259765625,
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0.058349609375,... | 42,981 | 42981 | |
Can Sierpinski's anisotropic bicolouring of the plane, assuming the continuum hypothesis (CH), be extended to three dimensions?
up vote 5 down vote favorite
Sierpinski showed that, on the assumption of CH (in fact, equivalently to it), each point in the plane can be coloured (say) black or white so that every section ... | 5 | [
0.01409912109375,
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-0.00689697265625,
-0.0... | 42,982 | 42982 | |
Need for I-Q modulator and demodulator
Some time back, a friend mentioned that he is yet to understand the need for having both in-phase (I) and quadrature-phase (Q) signals in typical wireless systems.
In this post, the attempt is to bring out the motivation for having I-Q modulation and present the block diagram of... | 4 | [
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the largest integer that divides all the number of the form ABCABC
December 19th 2010, 09:59 PM #1
the largest integer that divides all the number of the form ABCABC
Let ABC be a 3-digit number such that its digits A, B, and C form
an arithmetic sequence. The largest integer that divides all numbers of
th... | 4 | [
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0.039794921875,
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-0.0400390625,
-0.00122... | 42,984 | 42984 | |
ation
pdsolve - find solutions for partial differential equations (PDEs) and systems of PDEs
Calling Sequence
pdsolve(PDE, f, HINT = hint, INTEGRATE, build)
pdsolve(PDE_system, funcs, HINT, other_options)
pdsolve(PDE_or_PDE_system, series, conds, order=n, other_options)
pdsolve(PDE_or_PDE_system, conds, type=... | 5 | [
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0.052001953125,
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-0.0166015625,
0.03173828125,
-0.0294189453125,
-0.068359375,
-0.0046081542... | 42,985 | 42985 | |
Integer Divisors
Date: 04/11/97 at 21:34:00
From: Mafaza Mahroof
Subject: Integer Divisors
The positive integer N has exactly six distinct integer divisors
including 1 and N. The product of five of these is 648. Which one of
the following integers must be another divisor of N?
A. 4
B. 9
C. 12
D. 16
E. 24
I don't... | 4 | [
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0.0283203125,
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0.0162353515625,
-0.01483154296875,
-0.0007476806640625,
-0.07373046875,
-0.02722... | 42,986 | 42986 | |
Diprotic Acids
Titration Curves Of Diprotic Acids
A diprotic acid is an acid with two ionizable hydrogens such that it yields two H^+ ions for each acid molecule. Examples of diprotic acids are H[2]CO[3] (carbonic acid) , H[2]C[2]O... | 4 | [
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0.037109375,
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-0.01806640... | 42,987 | 42987 | |
Ball bouncing from massive wall.
Most physics textbooks consider the case of a ball bouncing from a massive object, say the floor, or a wall. They consider the case where the collision is nearly or totally elastic. In the totally
elastic collision, the ball loses no kinetic energy in the collision, so its speed after... | 4 | [
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0.0208740234375,
0.009094... | 42,988 | 42988 | |
Exponential equation that matches graph?
March 12th 2014, 05:12 PM #1
Member
Exponential equation that matches graph?
Re: Exponential equation that matches graph?
Why do you think that I and III work? Give some reasoning. It looks (estimating) that the limit as $x \to \infty$ is $-5$. Since the exponential func... | 4 | [
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0.0947265625,
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-0.066406... | 42,989 | 42989 | |
COMSOL 4.4 Brings Particle-Field and Fluid-Particle Interactions
The trajectories of particles through fields can often be modeled using a one-way coupling between physics interfaces. In other words, we can first compute the fields, such as an electric field,
magnetic field, or fluid velocity field, and then use these... | 4 | [
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0... | 42,990 | 42990 | |
COOKIE
The Cookie Problem
This semester my colleagues and I used a simple modeling problem as one of the
questions on our Precalculus final exam. The question was,
"The Fresh Bakery currently sells 1000 large chocolate chip cook... | 5 | [
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0.06982421875,
-0.0... | 42,991 | 42991 | |
Exponential Regression with Matlab
Exponential Regression - calculate with Matlab
We’ll work this time with exponential regression in a curve fitting example. The following codes find the coefficients of an equation for an exponential curve.
The equation is in the following form
where a and b are the calcula... | 5 | [
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-0.034... | 42,992 | 42992 | |
Finding the basis for the column space and null space
January 14th 2011, 09:01 AM #1
Newbie
Joined
Jan 2011
Posts
20
Finding the basis for the column space and null space
Let
A = -2 -1 -3 6 1
1 1 1 -2 1
2 3 1 -2 4
Find a basis for the column space Col(
A) of A, and a basis ... | 4 | [
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... | 42,993 | 42993 | |
EXPanD! yay
Could you show some work of what you've done so we know how we can help you?
Sure I forgot how to use pascals triangle so I foiled two of the (x+y) (x+y)(x+y) and got (x^2 +xy+xy+y^2) now i need to multiply (x^2 +xy+xy+y^2)(x^2 +xy+xy+y^2) I am stuck at that point
Ok well, we can do it your way first. Jus... | 4 | [
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Invariant measures and recurrent sets.
up vote 10 down vote favorite
1
Suppose $T:X \to X$ is a homeomorphism of a compact metric space. The recurrent set is the set of all points $x \in X$ such that for every $\epsilon>0$ there exists an $n\in \mathbb{Z}$, $n \ne 0$,
such that $d(T^nx,x)<\epsilon$. Does there exists ... | 5 | [
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0.05126953125,... | 42,995 | 42995 | |
.
3. BASIC PROCESSES
A bound electron in an ion can be brought into a higher, excited energy level through a collision with a free electron or by absorption of a photon. The latter will be discussed in more detail in
Sect. 6. Here we focus upon excitation by electrons.
The cross section Q[ij] for excitation from lev... | 4 | [
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0.06494140625... | 42,996 | 42996 | |
The Classifying Space of the Discrete Heisenberg Group
up vote 2 down vote favorite
3
What is the Classifying Space of the Discrete Heisenberg Group? Which paper/book contains a detailed proof?
Thank you for your time.
at.algebraic-topology classifying-spaces reference-request
3 The Heisenberg manifold, which is... | 4 | [
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Enumeration in Combinatorial Analysis
Date: 11/28/96 at 00:36:03
From: Bill L. Mauer
Subject: Digital Sums
My eleven-year-old granddaughter has the following question from her
math homework: How many 3 digit numbers have the digital sum of nine?
I can sit down and write all the numbers from 100 to 999 and count the... | 4 | [
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0.0179443359375,
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... | 42,998 | 42998 | |
rimes
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Contents:
1. Introduction - What is the Question?
About 2300 years ago Euclid proved that there were infinitely many primes. For mathematicians "infinite... | 4 | [
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-0.1220... | 42,999 | 42999 |