Mathematics
Bob the Builds
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Apparently, this user prefers to keep an air of mystery about them.

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7 What is the total number of distinct sums possible from tossing six, six-sided dice? Dec 31 '13
6 Find the limit of $\lim\limits_{x\rightarrow0}\frac{x}{\tan x}$. Mar 6 '15
5 Let $\sigma$ be the $m$-cycle (1 2 $\ldots m)$. Prove that $\sigma ^i$ is also an $m$-cycle if and only if $i$ is relatively prime to $m$ Feb 1 '14
5 Suppose the gcd (a,b) = 1 and c divides a + b. Prove that gcd (a,c) = 1 = gcd (b,c) Oct 3 '13
4 Why can we assume that the expected value of the error term is zero? [closed] Feb 11 '14
4 Describe the fibers of $\phi$ and that $\phi$ is a homomorphism. Mar 7 '14
3 Let rad(n) = $\Pi_{primes, p|n}$ p. Dec 17 '13
3 Show that there are infinitely many values of n for which $23| n^2 + 14n + 47$ Dec 18 '13
3 Proof of L'Hopital's Rule on infinity Mar 6 '15
3 Suppose $f$ has derivatives of all orders. Prove that $F(x):=exp(f(x))$ also has derivatives of all orders. Feb 21 '15
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