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Common math questions, quality answers.
Jul24-14 10:02 AM Greg Bernhardt 
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Test your skills. Math challenges will be posted at least once a week. Suggestions for problems are welcomed. Brought to you by Office_Shredder.
Y 07:23 AM chingel 
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Jan16-12 Greg Bernhardt
Please post any and all homework or other textbook-style problems in one of the Homework & Coursework Questions...
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Hi! I've got a couple of questions about Sudoku. 1. How many possible Sudoku boards are there? That is, a 3x3...
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SO the entrance to a college is based off of two factors: 54% grade point average, and 46% supplemental application....
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Heres two problems from an A Level related paper: prove that if pq is irrational then atleast one of p or q is...
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I dont understand the concept (or need for) of vacuous truths/implications. Why is it that if say a statement a is...
Nov10-11 01:38 AM
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It seems to me (though I would be *extremely* glad to be proven wrong here) that in mathematics we often blindly...
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Hi, I was just reading up on some material for one of my exams and came across something. I realize this may seem...
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if given two points each with different x and y coordinates, what is the best way to define the error between these...
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Why is it not possible to have the log of a negative number? Examples would be greatly appreciated. Furthermore,...
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Hi!!! im amateur in mathemathicals growth models but im doing my graduated work in adjust five differents models in...
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Is the statement -1<1/0<1 decidable using the ordered field/real number axioms and first order logic? I have tried to...
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I'm stumped as to how to find a formula for the number of pairs QN*QN between 1 and p-1. I must use the following as...
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You have 10 days of numbers that are averaged together (10 day avg). The most recent 3 days of numbers also averaged...
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Hello All, I need help making sure I am right about this. Say for example I have these two functions: f(n) = 2^n and...
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Can anyone give me examples of "infinity" in the physical world around us? Ie. evidence of its existence as more than...
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I first read this story in New Scientist when I was collecting it. Here are some highlights: The article has...
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Hi Folks. I was hoping to pick the brains of some of the mathematicians and mathematically inclined on this site. ...
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if i integrate d/dx(x^2), should i include the constant of integration? thanks
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this is quite a classic problem i think but im having difficulty finishing it off. If we have two stamps of positive...
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does any one know a proof for the solution to the frobenius problem for n=2? that is, that the smallest not possible...
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hey, i was just wondering if anyone could help find the sum of the infinite series defined by 1/. I can split it into...
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Hi there, I have a question regarding this statement: My question is...
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Dear All, Currently I'm working out a formula for Destroyers in the online game BattleGround Europe to be able to...
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I want the 1st, 2nd and 3rd derivatives of the following seven parameter double sigmoid function Y = a + b /(1 +...
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Hi, Please assist, I write this matlab function and receive the error below function...
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