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Cauchy's Theorem question, abelian case November 5th 2012, 08:33 PM #1 Junior Member Joined Oct 2012 From Austin, Texas Posts 36 Cauchy's Theorem question, abelian case Theorem: Let G be a finite group and p be a prime. If p divides the order of G, then G has an element of order p. Proof 1: We in...
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[ -0.06787109375, 0.01141357421875, 0.0986328125, 0.0284423828125, 0.06884765625, -0.0177001953125, 0.031982421875, 0.01507568359375, -0.03564453125, -0.00177764892578125, 0.049072265625, 0.068359375, 0.01348876953125, -0.06884765625, -0.0057373046875, 0.014404296875, -0.10400390625, ...
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calculating limit of a sequence December 30th 2012, 10:56 AM #1 Member Joined Nov 2012 From israel Posts 164 Thanks 2 calculating limit of a sequence i need to calculate the limit of this sequence: $\sqrt[n^2]{n!}$ i tried to use the sandwich rule to squeeze it between to sequences, but...
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[ 0.05908203125, -0.059326171875, -0.09619140625, -0.029296875, -0.1376953125, 0.016357421875, -0.068359375, -0.06201171875, 0.0267333984375, -0.04736328125, -0.06689453125, 0.095703125, -0.026123046875, 0.0478515625, 0.033203125, 0.051025390625, -0.00579833984375, 0.01806640625, -...
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Work done along a path November 27th 2012, 04:10 PM #1 Newbie Joined Sep 2012 From Canada Posts 19 Work done along a path Let the vector field be F(x,y,z) = (z^2+e^(2z))i + (z^3+1)j + (2xz+2xe^(2z)+3yz^2)k calculate the work done along the segment from point (0,1,0) to (1,0,3) using 2 different metho...
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[ -0.03173828125, 0.03564453125, -0.083984375, -0.0220947265625, -0.040283203125, -0.031982421875, 0.0189208984375, 0.0084228515625, -0.0189208984375, 0.07177734375, -0.01165771484375, 0.07275390625, -0.021728515625, 0.02392578125, -0.0595703125, -0.0247802734375, -0.051025390625, 0....
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Circle question December 8th 2009, 03:12 AM #1 Junior Member Joined Sep 2009 Posts 40 Circle question A point P is 8cm from the centre of a circle of radius length 5cm. Find the length of the major arc between the points of contact of the tangents drawn from P to the circle. Thanks in advance. ...
4
[ -0.0771484375, 0.032470703125, 0.1015625, 0.0595703125, 0.0213623046875, 0.048828125, 0.007659912109375, 0.15625, 0.0238037109375, 0.00885009765625, 0.03662109375, 0.0233154296875, -0.0439453125, 0.058837890625, -0.04541015625, 0.0264892578125, -0.06982421875, -0.05322265625, -0....
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How to solve this limit How do you solve lim as n approaches infinity of (n^(1/n)+1)? Hint : Set $\ln A=\ln\left(n^{1/n}\right)$ and show : $\lim_{n \to \infty}\ln A=0$ lim n→∞ (n^(1/n)+1) = lim n→∞ (n^(1/n)) +1 lim n→∞ (n^(1/n)) is indeterminate, use L'Hopital's Rule First change the limit into e^(lim n→∞ ln(n^(1/n)...
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[ 0.0216064453125, -0.0194091796875, 0.00909423828125, 0.037841796875, -0.0230712890625, -0.025146484375, -0.00604248046875, 0.01263427734375, 0.0419921875, -0.02099609375, -0.006744384765625, -0.03857421875, 0.041748046875, 0.058837890625, 0.0035858154296875, 0.00836181640625, -0.0966...
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Converting Quadratic equations to Vertex form and solving quadratic inequalities June 12th 2008, 09:05 PM #1 Newbie Joined Jun 2008 Posts 1 Converting Quadratic equations to Vertex form and solving quadratic inequalities I'm litteraly confounded as to how to turn this equation y=x^2+18x-4 and I...
4
[ 0.000789642333984375, 0.0869140625, 0.0303955078125, -0.0303955078125, 0.005615234375, 0.031982421875, -0.07470703125, 0.058349609375, -0.01214599609375, -0.04931640625, 0.041259765625, 0.03857421875, 0.017578125, 0.0242919921875, 0.0181884765625, 0.0830078125, 0.06298828125, -0.06...
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Linear Combination March 15th 2007, 12:44 PM #1 Newbie Joined Feb 2007 Posts 18 Linear Combination I have tried to solve this problem: 714x + 7007y = 7 but I have not come to a solution yet. Thank you! Let us find the greatest common divisor by the algorithm mentioned in the Elements....
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[ -0.006378173828125, 0.04638671875, 0.00079345703125, -0.07568359375, 0.0267333984375, -0.01953125, -0.006195068359375, 0.0213623046875, -0.1748046875, 0.00555419921875, -0.02392578125, 0.0322265625, 0.04248046875, 0.03564453125, -0.044189453125, 0.0166015625, -0.1044921875, 0.00364...
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Continuous and differentiable points of f(x,y,z) (Existence of multivariable limit?) P: 40 1. The problem statement, all variables and given/known data Find the continuous points P and the differentiable points Q of the function [tex]f[/tex] in [tex]{R}^3[/tex], defined as [tex]f(0,0,0) = 0[/tex] and [tex]f(x,y,z)...
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[ -0.059326171875, 0.01202392578125, -0.055419921875, 0.007080078125, 0.00131988525390625, -0.0145263671875, -0.0169677734375, -0.01275634765625, -0.03955078125, -0.037353515625, 0.06005859375, 0.03857421875, 0.03369140625, 0.103515625, 0.0238037109375, -0.04296875, -0.055419921875, ...
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Please solve the equation for "Y"? (a few more problems!) September 18th 2010, 10:24 PM #1 Newbie Joined Sep 2010 Posts 10 Hello, I wasn't completly sure on the ones I have solved. Most of these I have already solved, and have included the answer I got! Please tell me if I have gotten the a...
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[ -0.03662109375, -0.05224609375, 0.0267333984375, -0.0142822265625, 0.04443359375, -0.0245361328125, 0.0341796875, -0.08203125, 0.0162353515625, 0.0025177001953125, 0.10693359375, -0.037841796875, -0.033447265625, 0.07177734375, 0.09814453125, 0.0830078125, -0.1328125, 0.02233886718...
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Full-Wave Analysis of Traveling-Wave Field-Effect Transistors Using Finite-Difference Time-Domain Method International Journal of Antennas and Propagation Volume 2012 (2012), Article ID 948972, 9 pages http://dx.doi.org/10.1155/2012/948972 Research Article Full-Wave Analysis of Traveling-Wave Field-Effect Transistors...
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[ -0.0859375, 0.08447265625, 0.09375, 0.004058837890625, -0.037841796875, -0.07275390625, -0.04248046875, 0.01300048828125, -0.0179443359375, 0.031494140625, 0.041748046875, 0.03271484375, -0.0247802734375, -0.017333984375, 0.0179443359375, 0.0595703125, -0.07080078125, -0.0659179687...
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integration method December 9th 2009, 03:56 PM #1 Junior Member Joined Oct 2009 Posts 48 integration method what method would you use to integrate: y^4*((x+1)/((x-2)(x^2+5))) Thought it would be partial fractions and by parts but doesn't seem to work, thanks I'm assuming you're integrating...
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[ -0.0458984375, -0.004913330078125, 0.0673828125, -0.0262451171875, -0.007293701171875, 0.007598876953125, -0.061279296875, -0.04931640625, -0.004638671875, -0.03271484375, 0.047607421875, -0.0859375, -0.042724609375, 0.07275390625, -0.0096435546875, 0.0966796875, 0.0224609375, 0.02...
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Cauchy-Schwarz Inequality February 3rd 2008, 06:27 PM #1 Member Joined Jan 2008 Posts 154 Cauchy-Schwarz Inequality If $a_{1}, \ldots, a_{n}$ and $b_{1} \ldots, b_{n}$ are arbitrary real numbers, then $\left(\sum_{k=1}^{n} a_{k}b_{k} \right)^{2} \leq \left(\sum_{k=1}^{n} a_{k}^{2} \right) \left(\sum_{k=1...
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[ -0.03466796875, -0.02001953125, 0.0269775390625, 0.0069580078125, -0.033935546875, 0.038818359375, 0.041015625, -0.09423828125, -0.0024566650390625, -0.01324462890625, -0.0186767578125, 0.0079345703125, 0.042724609375, -0.03759765625, -0.06689453125, 0.0927734375, 0.07470703125, 0....
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Combinations - How many ways can you choose 20 ... September 24th 2008, 09:03 PM jlt1209 Combinations - How many ways can you choose 20 ... My teacher gave us this question and I'm not sure if I'm just going about it wrong, but it seems to me like there isn't enough information. The question is: A store sel...
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[ 0.01409912109375, -0.0042724609375, 0.05322265625, 0.025390625, -0.051025390625, 0.06298828125, 0.09130859375, 0.01953125, -0.00946044921875, 0.040283203125, 0.01446533203125, 0.014892578125, 0.06884765625, 0.087890625, -0.00726318359375, 0.061279296875, 0.046142578125, 0.041015625...
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Calculating IV Rate Questions. 1. 0 I really need some help with dosage problems. We are having our lab checkoff on Tues. Here is the question and I can not figure out how to even put the problem on paper. What formula do I use? How do I solve this? I am sure that it is something simple but I am stumped. Her...
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[ 0.012939453125, -0.0255126953125, 0.01519775390625, -0.08447265625, -0.05810546875, -0.051513671875, -0.004302978515625, 0.1728515625, -0.01806640625, -0.02099609375, -0.0286865234375, -0.041748046875, 0.0908203125, 0.0498046875, -0.12060546875, 0.00170135498046875, 0.024169921875, ...
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Math Help I need to simplify 2 expressions: a) $\frac{7}{(x-4)(x-4)}$ b) $\frac{-3\sqrt{x-2}}{2(x-2)^2}$ Are you meant to use index laws? If so then note: a) $\frac{7}{(x-4)(x - 4)} = \frac{7}{(x-4)^2} = 7 (x - 4)^{-2}$ (the last is a debatable simplification). b) $\sqrt{x - 2} = (x - 2)^{1/2}$. Now use the fact that...
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[ 0.04296875, 0.0184326171875, -0.00299072265625, 0.06298828125, -0.0537109375, -0.0089111328125, -0.0218505859375, -0.0086669921875, 0.04345703125, 0.08837890625, 0.0537109375, -0.0595703125, 0.00103759765625, 0.04296875, 0.005859375, 0.04443359375, -0.07421875, -0.01239013671875, ...
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Topolog DefinitionEdit Let $(X,\mathcal{T})$ be a topological space. A collection $\mathcal{B}$ of open sets is called a base for the topology $\mathcal{T}$ if every open set $U$ is the union of sets in $\mathcal{B}$. Obviously $\mathcal{T}$ is a base for itself. Conditions for Being a BaseEdit In a topological spa...
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[ 0.035888671875, -0.040771484375, 0.0101318359375, -0.06982421875, -0.002197265625, 0.004852294921875, 0.033447265625, 0.025390625, 0.0103759765625, -0.01953125, -0.0751953125, -0.056640625, 0.0888671875, 0.044189453125, 0.055908203125, 0.022705078125, 0.008544921875, -0.01794433593...
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2 Infinite Geometric Sequence Problems September 20th 2010, 11:56 PM #1 Newbie Joined Jun 2010 Posts 3 2 Infinite Geometric Sequence Problems (I think I'm posting in the right place, but not completely sure) Question 1 The water used in the orchard is stored in a tank. Each afternoon, 10% of ...
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[ -0.05908203125, 0.0830078125, 0.01251220703125, -0.0322265625, 0.039306640625, -0.0023345947265625, 0.00238037109375, 0.05419921875, -0.0279541015625, -0.0198974609375, -0.047607421875, -0.02099609375, 0.04052734375, 0.1357421875, 0.0015106201171875, -0.049072265625, -0.0478515625, ...
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Finding number December 19th 2009, 10:33 AM Dogod11 Finding number Hello everyone, I'm curious to know: A different set of natural numbers has median 20 and medium 17. What will be the largest number in this series? What I have done: Because they are natural numbers then are positive; ...
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[ -0.06103515625, 0.00628662109375, 0.060546875, -0.06884765625, 0.01483154296875, -0.07373046875, -0.026611328125, 0.0654296875, -0.0283203125, 0.051513671875, -0.026611328125, 0.0024261474609375, -0.000919342041015625, -0.0274658203125, -0.04931640625, 0.02783203125, 0.00086212158203...
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RC Quote: Originally Posted by Fourdan Hi So if Flieslikeabeagle (John) is listening : Data in metric Weight 700g Span 1370mm Wing area 24 dm2 WOC leads to CWL = 4.4 g/dm3 I find CWL = 700 / (24^1.5) = 5.95 g/dm3 WL = 29.2 g/dm2 is correct Regards Louis Hi Louis, as it happens, I did log in today, so I found yo...
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[ -0.051025390625, -0.045166015625, -0.09521484375, 0.07470703125, -0.017333984375, -0.095703125, 0.021484375, 0.1015625, 0.01953125, 0.07568359375, 0.04443359375, -0.0478515625, -0.043212890625, 0.035400390625, 0.0230712890625, 0.002471923828125, -0.021484375, -0.0015106201171875, ...
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Chemistry Question April 23rd 2010, 11:25 PM #1 Chemistry Question Gah. Question: In particle accelerators, protons can be accelerated to speeds near that of light. Estimate the wavelength in nm of such a proton moving at $2.40 * 10^8$ m/s. (mass of proton = $1.673 * 10^{-27}$kg) Here's the work I'v...
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[ -0.0194091796875, 0.031982421875, -0.0234375, 0.041259765625, -0.0216064453125, -0.047119140625, 0.0033111572265625, 0.08447265625, -0.06982421875, -0.0017852783203125, 0.1259765625, -0.07373046875, 0.006195068359375, -0.03125, 0.0022125244140625, 0.0869140625, 0.0673828125, -0.010...
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Proposition 27 If two numbers are relatively prime, and each multiplied by itself makes a certain number, then the products are relatively prime; and, if the original numbers multiplied by the products make certain numbers, then the latter are also relatively prime. Let A and B be two relatively prime numbers, let A ...
4
[ -0.0299072265625, 0.041259765625, -0.04833984375, -0.08203125, 0.025146484375, 0.0322265625, 0.060546875, 0.0732421875, -0.06787109375, -0.01153564453125, -0.005340576171875, -0.0133056640625, 0.09423828125, 0.02001953125, 0.017578125, 0.01611328125, -0.04443359375, 0.040283203125,...
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Determine the progression? May 21st 2009, 10:00 AM #1 Determine the progression? Suppose $x_1,x_2,x_3,\mbox{...},x_n$ are in Arithmetic Progression. It is given that $x_1 + x_2 + \mbox{...} + x_n = a$ and $x_1^2 + x_2^2 + \mbox{...} + x_n^2 = b^2$. Determine the progression. Answer: I was unable to do i...
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[ -0.091796875, 0.0224609375, 0.07666015625, -0.0888671875, -0.07470703125, 0.01025390625, -0.07177734375, -0.0267333984375, 0.04931640625, -0.043212890625, -0.004302978515625, -0.0634765625, -0.00897216796875, -0.06591796875, -0.0269775390625, 0.060791015625, 0.037841796875, 0.01116...
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prove that if sequence (an) converges, use def of limit of sequence to prove... August 28th 2009, 02:34 AM #1 Newbie Joined Aug 2009 Posts 6 prove that if sequence (an) converges, use def of limit of sequence to prove... that if an>=1 for all natural number n, then L >= 1. My answer : From the ...
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[ -0.06689453125, -0.03955078125, 0.04541015625, -0.0419921875, -0.012939453125, 0.03564453125, 0.0155029296875, -0.003875732421875, 0.0208740234375, -0.05126953125, 0.0302734375, 0.0203857421875, 0.060546875, 0.003814697265625, 0.06640625, 0.0196533203125, -0.046875, -0.03369140625,...
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xample This example illustrates the basic functionality of the toolbox and shows how the generated code and the interfaces are used. More details can be found in the user guide. Let us consider the following parametric problem (the parametric problem data is indicated in red). where and Using FiOrdOs syntax, t...
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[ -0.07373046875, 0.0091552734375, -0.0859375, -0.08349609375, -0.041259765625, -0.05517578125, 0.051513671875, 0.134765625, -0.06005859375, 0.005157470703125, 0.0830078125, -0.068359375, 0.068359375, -0.07080078125, -0.000698089599609375, 0.03955078125, -0.0849609375, -0.0947265625,...
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Comparison between Certain Equivalent Norms Regarding Some Familiar Properties Implying WFPP International Journal of Mathematics and Mathematical Sciences Volume 2011 (2011), Article ID 287145, 12 pages http://dx.doi.org/10.1155/2011/287145 Research Article Comparison between Certain Equivalent Norms Regarding So...
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[ -0.11962890625, -0.060791015625, -0.064453125, -0.0274658203125, 0.0458984375, 0.04296875, 0.0458984375, 0.07958984375, 0.0732421875, 0.0244140625, 0.0194091796875, 0.021240234375, 0.0927734375, -0.01507568359375, -0.01007080078125, -0.0277099609375, 0.0084228515625, -0.04052734375...
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Patent US7551969 - State based adaptive feedback feedforward PID controller CROSS REFERENCE TO RELATED APPLICATIONS This application is a continuation of U.S. patent application Ser. No. 10/419,582 filed Apr. 21, 2003 and entitled “State Based Adaptive Feedback Feedforward PID Controller” which is a continuation-in-pa...
4
[ -0.1640625, -0.0301513671875, -0.06005859375, -0.0145263671875, -0.07177734375, 0.04052734375, -0.058837890625, 0.045166015625, 0.0230712890625, 0.044189453125, -0.02587890625, 0.146484375, 0.05419921875, -0.11083984375, -0.0830078125, -0.019775390625, 0.06396484375, 0.007354736328...
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Trigonometric Equations? May 10th 2009, 12:14 PM Frontier Trigonometric Equations? I have an assignment here on trig equations but I'm not sure how to do them. I have a vague idea but my textbook doesn't offer much help and I won't be able to ask my teacher for assistance until Thursday. Would anybody be wil...
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[ -0.11181640625, 0.0096435546875, -0.053466796875, 0.018798828125, -0.02294921875, 0.01025390625, 0.059814453125, 0.007476806640625, 0.0234375, -0.004486083984375, 0.1015625, -0.087890625, 0.08203125, 0.04150390625, 0.06103515625, -0.021728515625, -0.040283203125, -0.0230712890625, ...
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Compound Interest Problem July 15th 2013, 05:40 PM #1 Junior Member Joined Jan 2013 From Washington State Posts 27 Compound Interest Problem Kathy deposits $10,000 in her retirement account, which compounds interest continually. If she has $19,600 in the account after four years, how much money will ...
5
[ 0.0361328125, 0.007720947265625, 0.0137939453125, -0.01080322265625, -0.049072265625, -0.018798828125, 0.01513671875, 0.07275390625, -0.048828125, 0.07177734375, -0.0186767578125, 0.016845703125, -0.01470947265625, 0.07421875, -0.001708984375, 0.1015625, -0.09423828125, -0.01245117...
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Modular Arithmatic January 31st 2008, 03:45 PM nippy Modular Arithmatic Find the value of x: (35-207)= x mod 11 Can someone show the steps for this answer? I just don't know what to do after I get -172. January 31st 2008, 05:00 PM topsquark Quote: $(35 - 207) \equiv x~\text{mod 11}$ $...
4
[ -0.048828125, 0.12353515625, -0.0035552978515625, -0.099609375, -0.0137939453125, 0.00103759765625, 0.060302734375, 0.0279541015625, -0.06298828125, -0.05615234375, 0.002685546875, 0.0203857421875, 0.037841796875, -0.0011444091796875, 0.02099609375, -0.06591796875, 0.0400390625, -0...
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inequality induction question September 19th 2010, 10:15 PM #1 Junior Member Joined Mar 2008 Posts 55 inequality induction question Having some trouble with this one... Consider the sequence a(n) n in natural numbers defined by a(1) = 1, a(2) = 2, a(3) = 3 and a(n) = a(n-1) + a(n-2)+a(n-3) for all n...
4
[ -0.0693359375, 0.011474609375, -0.039794921875, -0.05029296875, -0.0517578125, 0.006072998046875, -0.032958984375, -0.06396484375, 0.014892578125, 0.0732421875, -0.10107421875, -0.044921875, 0.05517578125, -0.057861328125, 0.0634765625, -0.01409912109375, -0.041748046875, 0.0092163...
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Laurent series September 23rd 2009, 08:50 AM #1 Laurent series Hi Complex Analysis.... Problem: Find the Laurent series for $f(z)=\frac{z^{2}}{z^{2}-1}$ about the point $z_{0}=1$ I got that $f(z)=1+\frac{1}{2}\cdot \frac{1}{z-1}-\frac{1}{2}\cdot \frac{1}{z+1}$ , which I wrote as $1+\frac{1}{2}\...
5
[ 0.0269775390625, 0.0291748046875, -0.016357421875, 0.06640625, 0.0108642578125, -0.041259765625, -0.0184326171875, 0.009765625, 0.0123291015625, 0.08251953125, -0.05615234375, -0.03271484375, 0.015869140625, 0.08251953125, -0.10888671875, 0.036376953125, 0.033203125, -0.08203125, ...
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Vampire Numbers Revisited Limbic~Region has asked for the wisdom of the Perl Monks concerning the following question: All, YuckFoo stated in Vampire Numbers that A Vampire Number is equal to a product of it's digits like 1435 = 41 * 35 and later on mused that ...it would be interesting to look for products of m...
4
[ -0.02490234375, 0.0177001953125, -0.06494140625, -0.052734375, -0.0216064453125, 0.006378173828125, 0.03125, 0.0223388671875, -0.018310546875, -0.022705078125, 0.00909423828125, -0.034423828125, 0.009033203125, 0.036376953125, -0.07763671875, 0.003692626953125, -0.0177001953125, 0....
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Simplify this expression... Get ready for a ride.... Here are the highlights: Let $\displaystyle x = ( 2 + \sqrt{5} )^{1/3} + (2 - \sqrt{5} )^{1/3}$ Now $\displaystyle x^3 = (2 + \sqrt{5}) + 3( 2 + \sqrt{5} )^{2/3}(2 - \sqrt{5} )^{1/3} + 3(2 - \sqrt{5} )^{1/3}(2 - \sqrt{5})^{2/3} + (2 - \sqrt{5})$ This reduces to $\dis...
5
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Nonexact Differential Equation (Possible to solve by integrating factor?) 1. The problem statement, all variables and given/known data Solve the differential equation: [itex]t^2 y' + y^2 = 0[/itex] 3. The attempt at a solution Now, it's definitely possible to solve this via separable of variables. But I am curious to...
4
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need help with these Q's please May 25th 2006, 06:36 PM #1 Newbie Joined May 2006 Posts 12 need help with these Q's please Players select one chip froma bag with 8 zerosand 4 ones and one chip froma bag with 4 zeros and 8 ones. Their score is the larger of the two numbers on the chips. Present the p...
5
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Homomorphism 13.02 (Determine whether or not Book 13.02 (Determine whether or not φis a homomorphism.) Let φ: R → Z under addition be given by φ(x) = the greatest integer ≤ x. Solution: It is not a E cient homomorphism-free enumeration of conjunctive queries Book E cient homomorphism-Free enumeration of conjunctive...
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Math Help July 18th 2006, 10:41 AM #1 Member Joined Sep 2005 Posts 136 plz help 1>Is sqrt(x^2)=x an identity (true for all values of x)? 2> For the equation x-sqrt(x)=0 , perform the following: a) Solve for all values of x that satisfies the equation. b) Graph the functions and on the sam...
4
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On Intuitionistic Fuzzy Filters of Intuitionistic Fuzzy Coframes Journal of Mathematics Volume 2013 (2013), Article ID 793824, 10 pages http://dx.doi.org/10.1155/2013/793824 Research Article On Intuitionistic Fuzzy Filters of Intuitionistic Fuzzy Coframes Department of Mathematics, Mar Athanasius College, Kothamanga...
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Function LCM Syntax: lcm &rest integers => least-common-multiple Arguments and Values: integer---an integer. least-common-multiple---a non-negative integer. Description: lcm returns the least common multiple of the integers. If no integer is supplied, the integer 1 is returned. If only one integer is ...
4
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Differentiate Exponents May 30th 2007, 12:05 PM #1 Newbie Joined Oct 2006 Posts 18 Find first and second derivatives, critical number, inflection points. f(x) = xe^x f'(x) = ('x) (e^x) + x(e^x)('x) f'(x) = e^x+xe^x f'(x) = e^x(1+x) Critical number x = -1 f"(x) = e^x(1) + (1+x)(e^...
4
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Simplifying a composite function. September 26th 2011, 03:57 PM #1 Newbie Joined Sep 2011 Posts 8 Simplifying a composite function. I was hoping someone could help me out with the following problem: f(g(x)) f=(1+x)/2x g=x/(3x+2) I need to simplify that and find out the domain of the co...
4
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Math Help July 7th 2008, 02:01 PM #1 Member Joined Mar 2008 Posts 99 Divisibility 1) If $(a,b) = d$, prove that $(\frac{a}{d}, \frac{b}{d}) = 1$ Not quite sure how to do that one.. 2) If $a|(b+c)$ and $(b,c)=1$, prove that $(a,b) = 1 = (a,c)$ Suppose $d|a$ and $d|b$ $a=du$ for some u...
5
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[SOLVED] metric problem September 13th 2008, 12:30 PM #1 maybe im wrong or wrote the correct answer differently... i put that there is 4.96 x 10^-7 tons in 4.5 x 10^2 kg. is that right? and for a drive way that measures 20ft by 30ft, how much area does it cover in square mL... but i think its mm since th...
4
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log question help September 12th 2008, 02:33 AM #1 Newbie Joined Jan 2008 Posts 11 log question help so the equation is house price = A(2.7)^kt t= time in years A and k are constants price is 112486 when t=3 price is 131593 when t=7 question is to work out A and k I've been ...
4
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3-Regular graph October 13th 2010, 07:27 PM #1 Super Member Joined Feb 2008 Posts 535 3-Regular graph Prove that a 3-regular simple graph has a 1-factor if and only if it decomposes into copies of P4. Prove that every 3-regular simple graph with no cut-edge decomposes into copies of P4. ...
5
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partial diff. April 24th 2007, 02:24 AM #1 Hey All, how would you solve the following: given that Ø = 3x^2 + y^3 + z^4 show that x/2.∂Ø/∂x + y/3.∂Ø/∂y + z/4.∂Ø/∂z = Ø I have found; ∂Ø/∂x=6x, ∂Ø/∂y=3y^2, ∂Ø/∂z=4z^3 Hello, dadon! You're that close . . . Given: .F .= .3x² + y³ + z^...
5
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Group Factoring February 16th 2010, 12:40 PM shadow6 Group Factoring I have three questions involving group factoring, though I'm not exactly sure how to do them. I've done this so far. a) ac + bc - ad - bd (ac + bc) - (ad - bd) c(a + b) - d(a - b) (a + b)(c - d)(-1) Is the negative sup...
4
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Patent US4734702 - Passive ranging method and apparatus BACKGROUND OF THE INVENTION 1. Field of the Invention This invention pertains, in general, to passive direction and range finding, and in particular, to a method and apparatus for passive ranging from a moving platform to a stationary, non-cooperative emitter. ...
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Patent US5129002 - Pattern recognition apparatus This is a continuation of application Ser. No. 540,356, filed on Jun. 19, 1990, for a Pattern Recognition Apparatus, abandoned, which is a continuation in part of Ser. No. 285,193 filed Dec. 15, 1998, abandoned. BACKGROUND OF THE INVENTION 1. Field of the Invention app...
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subtracting rationals September 9th 2007, 04:00 PM #1 subtracting rationals Hi Everyone! I would like you to check my work. BTW my book is Precalculus, 3rd Edition by Bittinger, Beecher, Ellenbogen, and Penna The directions are to add/subtract/divide and simplify if possible. #38: $\frac{3a}{3a\,-\...
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Two Different Masses on an Uncentered Fulcrum (Torque) 1. The problem statement, all variables and given/known data Two blocks each of mass 1.9 kg are suspended from the ends of a rigid weightless rod of length l1 = 1.43 m and l2 = .085 m. The rod is held in the horizontal position shown and then released. Calculate ...
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September 2 M Theory Lesson 228 Observe that in any dimension, the diagonal Fourier operator $D$ that generalises $\sigma_{Z}$ will have the elementary basis vectors as eigenvectors. Similarly, the basic 1-circulant $(23 \cdots n 1)$ provides a basis set that is complementary to the basis set for $D$. An example of...
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A Partial differetial question February 1st 2008, 08:11 AM #1 Newbie Joined Dec 2007 Posts 14 A Partial differetial question PV = RT(1+B(T)/V) Code: $\beta$ = (1/V)*( $\frac{dV}{dT}$) at constant P show Code: $\beta$ = $\frac{1}{T}$* $\frac{V + B + T\frac{d...
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Find P(X<Y) for two independent exponential random variables October 19th 2010, 02:20 PM #1 Member Joined Sep 2008 Posts 79 Find P(X<Y) for two independent exponential random variables Suppose that X and Y are independent exponential random variables with means m and n, respectively. Demonstrate that P (...
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Separable equations May 22nd 2010, 11:26 PM Fredrik373 Separable equations Hi! I have problem solving this equation dy/dx = y/2x The answer should be y^2 = Cx I cannot understand why you multiply the constant with x... May 23rd 2010, 12:54 AM mr fantastic Quote: $\frac{1}{y} \, d...
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Find Curvature Question November 20th 2010, 11:14 AM #1 Newbie Joined Nov 2010 Posts 24 Find Curvature Question Find the curvature κ(t) of the parabola x(t) = (t, t^2) for -∞ < t<∞ I've found d2x/dt2 to be 2 and dx/dt to be 2t using κ(t) = d2dt2/(1 + (dx/dt)^2)^3/2 is there any way I can ea...
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Right actions of operads and monads up vote 8 down vote favorite 8 Given an operad $A$, there is an associated monad $M_A$ given by $M_A(X) = \coprod_n A(n) \otimes X^{\otimes n}$ such that being an $A$-algebra and being an algebra over the monad $M_A$ is the same thing (the categories are equivalent). This is very cl...
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Limit: Indeterminate Form/L'Hospital's Rule May 26th 2008, 09:56 AM #1 Limit: Indeterminate Form/L'Hospital's Rule Evaluate the limit. (If you need to use - $<br /> \mathop {\lim }\limits_{x \to \infty } \frac{{\ln \left( {\ln \left( {4x} \right)} \right)}}<br /> {{4x}}<br />$ Here's what I tried. Here'...
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Matlab Plotting of QM double-potential-barrier Hey everyone, I have a quantum mechanics/matlab issue. I'm trying to plot the Transmission Coefficient T(E) of a double-potential barrier with barrier width 3nm and spacing 9nm, potential V = 0.5eV and sweeping energy from 0 to 1eV. Using the cascading matrix method where,...
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Speed of atoms ejected from an oven My question is this: what is the average speed of atoms released from an oven at some temperature T? For example, in a Stern-Gerlach experiment, hydrogen atoms are emitted from an oven and collimated into a beam by passing them through a slit (and then sent into an inhomogenous magne...
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Patent US4970638 - Control of unknown systems via deconvolution RIGHTS OF THE GOVERNMENT The invention described herein may be manufactured and used by or for the Government of the United States for all governmental purposes without the payment of any royalty. BACKGROUND OF THE INVENTION The present invention relate...
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Gauss' Law for Gravitation 1. The problem statement, all variables and given/known data The gravitational field g due to a point mass M may be obtained by analogy with the electric field by writing an expression for the gravitational force on a test mass, and dividing by the magnitude of the test mass, m. Show that Gau...
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Putnam proof August 29th 2006, 12:42 PM #1 MHF Contributor Joined Oct 2005 From Earth Posts 1,599 Putnam proof I am studying for the Putnam competition in December and I want just a hint at how to do this problem, not a full solution please. I'm trying to develop a good methodology to approaching pro...
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Density Problem and Approximation Error in Learning Theory Abstract and Applied Analysis Volume 2013 (2013), Article ID 715683, 13 pages http://dx.doi.org/10.1155/2013/715683 Research Article Density Problem and Approximation Error in Learning Theory Department of Mathematics, City University of Hong Kong, Tat Chee ...
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m22#30 Author Message 3 This post received KUDOS Expert's post ...
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Equation of plane through two points and parallel to line May 18th 2011, 03:45 PM blackbear Equation of plane through two points and parallel to line Quote: Find the equation of the plane passing through the points (3, 2, -1) and (1, -1, 2) that is parallel to the line r(t) = <1, -1, 0> + t<3, 2, -1> L...
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Apostol Section 10.20 #51 October 11th 2011, 12:42 PM #1 Junior Member Joined Sep 2011 Posts 70 Thanks 2 Apostol Section 10.20 #51 Given a covergent series $\textstyle \sum a_n$, where each $a_n \ge 0$, prove that $\textstyle \sum \sqrt{a_n} n^{-p}$ converges if $p>\frac 1 2$. My attempt so far:...
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Pair of dice question, P(at least 4 rolls) October 4th 2009, 05:16 PM Flipz4226 Pair of dice question, P(at least 4 rolls) Hi, I need some help with this... Two dice are rolled until a 6 appears on at least one of the dice. What is the probability that it takes at least four rolls(of two dice) before the fi...
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Area of a polygon March 22nd 2007, 01:26 PM Recklessid Area of a polygon Hello, I was wondering if anyone can help me with this problem. A) Let A_n be the area of a polygon with n equal sides inscribed in a circle with radius r. By dividing the polygon into n congruent triangles with central angle of (2pi)/n...
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three-dimensional applications January 11th 2011, 07:17 AM Eftychia three-dimensional applications A hot-air balloon, B, is observed simultaneously from two points, P and Q, on horizontal ground. From P the bearing of B is 60 degrees at an angle of elevation of 45 degrees. From Q the bearing of B is 330 degr...
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If f is bounded on every neighborhood of x in [a,b], then f is bounded on [a,b] November 10th 2009, 06:41 AM anon2194 If f is bounded on every neighborhood of x in [a,b], then f is bounded on [a,b] $I = [a,b]$ and $f : I \to R$ such that $\forall x \in I$, $f$ is bounded on a neighborhood $V_{\delta_{x}}(x)$...
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Static and Motional Feedthrough Capacitance of Flexural Microresonator Active and Passive Electronic Components Volume 2011 (2011), Article ID 546986, 6 pages http://dx.doi.org/10.1155/2011/546986 Research Article Static and Motional Feedthrough Capacitance of Flexural Microresonator Department of Electrical Enginee...
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Simplifying an expression Can you please answer this question because i am getting lost ... $\frac{x-y}{xy} +\frac{x-z}{xz}-\frac{z-y}{yz}$ Last edited by mr fantastic; February 21st 2009 at 12:59 PM. Reason: Moved to new thread - needed fixing. Last edited by mr fantastic; February 21st 2009 at 01:00 PM. Last edite...
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Integrals for exam November 20th 2006, 03:56 PM #1 Newbie Joined Nov 2006 Posts 6 Integrals for exam Hey I have an exam in 2 days and I really need some help gettin these questions under control! integral (x^2*e^-x)dx I am not quite sure where to start, I was thinkin that I need to use the subst...
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Analysis on the Synergy Evolutionary Development of the Collecting, Distributing, and Transporting System of Railway Heavy Haul Transportation Discrete Dynamics in Nature and Society Volume 2012 (2012), Article ID 329120, 22 pages http://dx.doi.org/10.1155/2012/329120 Research Article Analysis on the Synergy Evolutio...
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a few word problems November 11th 2007, 05:56 PM #1 Newbie Joined Mar 2007 Posts 16 a few word problems 1) An open box with length x feet,width y feet, and height 2 feet is shown below. It is known that the surface area for this box is 92 square feet and the equation to xy+4x+4y=92. Express the volum...
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Llinear transformations: Help with proving linear independency March 21st 2013, 10:06 AM #1 Member Joined Nov 2012 From israel Posts 164 Thanks 2 Llinear transformations: Help with proving linear independency Hi guys. I had the following statement to prove: Let $\varphi :V\rightarrow W$...
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Brevet US6737831 - Method and apparatus using a circuit model to evaluate cell/battery parameters This is a Continuation-In-Part of patent application Ser. No. 09/940,684 filed Aug. 27, 2001, now U.S. Pat. No. 6,495,990, which is a Divisional of patent application Ser. No. 09/388,501 filed Sep. 1, 1999, which issued as...
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Find a cartesian equation April 19th 2010, 02:01 PM DarthPipsqueak Find a cartesian equation So my professor isn't very good at teaching, and the book isn't very helpful with this as either. It only provides the simplest of examples, and I am still confused as to how to find Cartesian equations to these two ...
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Solve inequality help plz!! Note that $|3-4x| \geq 0$ always. If $xot = \tfrac{3}{4}$ then $|3-4x| ot = 0$ and so $|3-4x| > 0$. We know that $x=\tfrac{3}{4}$ cannot be such a number which makes this true - thus we will look at all other numbers to solve this. Divide by $|3-4x|$ to get $(x+5)(3x-2)>0$. Case 1: Both $(x+...
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Gradient of dot product February 7th 2013, 11:00 AM #1 Newbie Joined Oct 2009 Posts 9 Gradient of dot product Removed this post because I thought it was solved, having to add it again. What is the gradient of acos(u1*u2) (u1 and u2 are the unit vectors)? Apparently the gradient of u1*u2 is u2-(u1*u2)u1 ...
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Help with a proof by induction October 29th 2012, 06:01 PM #1 Newbie Joined Oct 2012 From Ohio Posts 14 Help with a proof by induction Prove the following using the principle of mathematic induction. n! > n^2, for all integers n >= 4. I am especially having trouble with the inductive step. T...
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Finding terminal velocity profaith hey how do you find terminal velocity? let say if you need to find the terminal veolcity of a ping pong ball? anyone has any ideas? what kind of experiment can i conduct? The terminal velocity of spheres like ping pong balls are fairly easy to compute and measure. The motion of such...
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On the Effect of Unit-Cell Parameters in Predicting the Elastic Response of Wood-Plastic Composites Journal of Engineering Volume 2013 (2013), Article ID 456398, 7 pages http://dx.doi.org/10.1155/2013/456398 Research Article On the Effect of Unit-Cell Parameters in Predicting the Elastic Response of Wood-Plastic Comp...
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subspace topology Context Topology Basic concepts Theorems Examples Contents Definition Given a topological space $X$ in the sense of Bourbaki (that is, a set $X$ and a topology $\tau_X$) and a subset $Y$ of $X$, a topology $\tau_Y$ on $Y$ is said to be the topology induced from $\ tau_X$ by the set inclusion $Y...
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another fraction decomposition Last edited by Jen; May 28th 2008 at 02:54 PM. I understand the difference of cubes, but I'm having trouble decomposing the fraction. Show us what you have done so far so that we can see what, exactly, you are having trouble with. Once you have factored the denominator completely, set u...
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The average of A and B is 10... January 25th 2007, 12:05 PM #1 Member Joined Sep 2006 Posts 75 The average of A and B is 10... The average (arithmetic mean) of A and B is 10, whereas the average of B and 10 is C/2. What is the average of A and C? This looks like a SAT question. $\frac{A+B}{2}=1...
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Brevet US8190936 - Method for determining and maximizing unavailability interval Numéro de publication US8190936 B2 Type de publication Octroi Numéro de demande US 12/194,045 Date de publication 29 mai 2012 Date de dépôt 19 août 2008 Date de priorité ...
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Average value of a function. July 28th 2010, 04:38 PM softballchick Average value of a function. Find the number b such that the average value of f(x)=2+6x-3x^2 on the intervak [0, b] is equal to 3. so I did the integal from 0 to b of 2+6x-3x^2 which is 2x+3x^2-x^3 now what? Do i set it equal to 3 and ...
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45 dergree mirrors in Special Relativity A beautifully crafted and presented document Hans! kev [EDIT] ... I am pretty sure if an angled mirror is moving away from the light source, the angle of reflection will be greater than the angle of incidence and if the mirror is moving towards the source, the angle of refle...
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Midpoint Theorem September 26th 2012, 11:19 PM powercroat783 Midpoint Theorem A triangle has vertices A (a,b) , B (c,d) and C (e,f). Prove two things - algebra only - that the line segment connecting the midpoint of two sides of the triangle is parallel to the third side, and ​the line segment is also equal ...
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Lorentz contraction of box filled with gas kev The pressure inside the box does not increase. I will try and explain why. Pressure is defined as force divided by area. Force is defined as m*a = m*dv/dt = dp/dt where dp is change in momentum. If we have a box with n particles, each of mass m, conveniently bouncing st...
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Explanation of a Proof about L^2 July 30th 2010, 05:09 PM #1 Member Joined Jun 2010 Posts 205 Thanks 1 Explanation of a Proof about L^2 Reading through Apostol's analysis text on $L^{2}(I)$ spaces, he claims that the inequality $|(f, g)| \leq ||f|| \cdot ||g||$ follows immediately from $\displaystyle...
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Patent US5999164 - Image data converter BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image data converter which converts YUV-format image data into RGB-format image data. 2. Related Art Conventionally, in a case where an image is displayed on a CRT (Cathode Ray Tube), YU...
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Finding point on sphere furthest from point in space September 7th 2010, 12:19 PM SyNtHeSiS Finding point on sphere furthest from point in space Find the point on the sphere $(x - 2)^2 + (y - 2)^2 + (z-7)^2 = 99$ which is furthest from the point C(1,3,4). Now I know that you suppose to find an equation of a...
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A pendulum question April 25th 2013, 05:32 AM #1 Newbie Joined Nov 2012 From Britain Posts 9 A pendulum question Hello I have included pictures of the question I would like some help with and also the solution I have been given. I am fine up until part c. However I really do not understand h...
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Without using L'Hospital's Rule $\displaystyle \lim_{x\to 0} \dfrac{ 2^{arctan(x)} - 2^{arcsin(x)} } { 2^{tan(x)} - 2^{sin(x)} }$ Let me try. First let me write $\frac{2^{\tan^{-1}x} - 2^{\sin^{-1}x} }{2^{\tan x} - 2^{\sin x} }$$\displaystyle = \frac{ \frac{2^{\tan^{-1}x} - 1}{\tan^{-1}x} \cdot \frac{\tan^{-1}x}{x} - ...
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leaky faucet September 5th 2005, 02:43 PM kamran5461 leaky faucet i have the followin question and i am not sure how to solve it : The table of data below was produced by students who did the leaking-faucet experiment. The measuring container they used held only 100 milliliters. If the students had continued...
4
[ -0.062255859375, -0.0023040771484375, 0.04638671875, -0.039306640625, -0.0185546875, -0.0277099609375, -0.01397705078125, 0.04541015625, 0.0390625, 0.01019287109375, -0.01544189453125, -0.1064453125, 0.048828125, 0.003570556640625, -0.048583984375, -0.02978515625, -0.08642578125, 0...
19,997
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Uniform Continuous and Uniform Convergence October 28th 2007, 02:28 PM #1 Member Joined Jan 2007 Posts 114 Uniform Continuous and Uniform Convergence 24.13 Prove that if (fn) is a sequence of uniformly continuous functions on an interval (a,b), and if fn -> f uniformly on (a,b), the f is also uniformly c...
4
[ -0.06005859375, -0.0012664794921875, -0.08642578125, -0.08251953125, -0.0419921875, 0.0732421875, 0.06396484375, -0.00555419921875, -0.04150390625, -0.056640625, 0.0196533203125, -0.01092529296875, 0.0341796875, -0.00885009765625, 0.14453125, -0.02392578125, 0.0238037109375, -0.028...
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Patent US20090077453 - Technique for reducing parity bit-widths for check bit and syndrome generation for data blocks through the use of additional check bits to increase the number of minimum weighted codes in the hamming code h-matrix BACKGROUND OF THE INVENTION The present invention relates, in general, to the fiel...
4
[ -0.0123291015625, 0.10693359375, -0.0830078125, -0.05615234375, -0.05859375, -0.02685546875, 0.031005859375, -0.0498046875, -0.0673828125, 0.01409912109375, 0.0020294189453125, 0.0908203125, 0.0732421875, -0.10302734375, -0.0859375, 0.0322265625, -0.0208740234375, 0.032470703125, ...
19,999
19999