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Mathematics
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Greg Martin

(for copy-pasting into questions) What are your thoughts? What have you tried? Where are you stuck? You need to [provide context__http://meta.math.stackexchange.com/questions/9959/how-to-ask-a-good-question/9960#9960) for your question. Right now, it just looks like you want somebody to do your homework for you; that's not what this site is for. If you add some appropriate context, we will be happy to help.

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80 Can there be an injective function whose derivative is equivalent to its inverse function? Aug 31 '16
38 How can I prove that $\gcd(a,b)=1\implies \gcd(a^2,b^2)=1$ without using prime decomposition? Oct 25 '11
32 Can we permute the coefficients of a polynomial so that it has NO real roots? Mar 27 '16
31 Is there a matrix of every size with all its submatrices invertible? Aug 8 '16
23 Finding $\lim\limits_{n \to \infty}{\frac{1^1+2^2+3^3+\cdots+n^n}{n^n}}$ Oct 29 '11
19 Is $\frac{1}{11}+\frac{1}{111}+\frac{1}{1111}+\cdots$ an irrational number? Apr 25 '16
19 Does the series $\sum_{n=1}^\infty\frac{\sin n}{\ln n+\cos n}$ converge? Jun 21 '14
19 Meaning of Rays in Polar Plot of Prime Numbers Aug 2 '14
16 Nature of the series $\sum\limits_{n}(g_n/p_n)^\alpha$ with $(p_n)$ primes and $(g_n)$ prime gaps Nov 29 '14
15 Integrating $\int \frac{1}{1+e^x} dx$ Oct 2 '11
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