Mathematics
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Bob the Builds

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 7 years, 6 months
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  • Last seen Mar 27 '20 at 17:49

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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 Suppose the gcd (a,b) = 1 and c divides a + b. Prove that gcd (a,c) = 1 = gcd (b,c) Oct 3 '13
4 Describe the fibers of $\phi$ and that $\phi$ is a homomorphism. Mar 7 '14
4 Prove that if $f''(x)+25f(x)=0$ then $f(x)=Acos(5x)+Bsin(5x)$ for some constants $A,B$ Apr 22 '15
3 Show that $f$ is uniformly continuous. Apr 20 '15
3 Prove that $g(x):=|f(x)|$ is differentiable iff $f'(a)=0$ Apr 21 '15
3 A fair die is rolled nine times. What is the probability that 1 appears three times, 2 and 3 each appear twice, 4 and 5 once and 6 not at all? May 3 '15
3 For fixed $x \geq 0$, find $\lim\limits_{n\to\infty}1-\left(\frac{n-\lambda}{n}\right)^{nx}$ Jun 7 '15
3 Given the p.d.f. of X, find the mean and variance of $X$. Jun 10 '15
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