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Feb
17
revised Prove $\lim_{n\to\infty}\sqrt{20+\sqrt{20+\sqrt{20+\dots+\sqrt{20}}}}=5$
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Feb
15
revised Integral $\int x^7\cos x^4 dx$
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Feb
13
revised Integral $\int\frac{dx}{x^5+1}$
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Feb
13
revised Integral $ \int_{0}^\infty (\cos(4x))^{\sin(x)} \text{ dx} =\mbox{?}$
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Feb
9
revised Integral $\int_2^\infty\frac{x^2}{\sqrt{x^7+1}}dx$
added 6 characters in body; edited title
Feb
9
answered Is there a geometric interpretation of the product integral?
Feb
9
revised Integral $\int \ (2x+6)^5+\frac{10}{(3x-1)^2} \text{d}x$
added 3 characters in body; edited title
Feb
9
comment Nested radicals of 1000 square roots
This would be close enough to the question with indefinitely many iterations, the possibility of a explicit answer is slim, should settle for the approximate one.
Feb
9
revised Sum $\sum_{n=2}^{\infty} \dfrac{n^4+3n^2+10n+10}{2^n(n^4+4)}$
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Feb
9
revised Prove that the limit of $a_n = \frac{2n^3+n^2}{(n+2)^3}$ is $2$.
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Feb
8
revised Is $i = \sqrt{e^{\pi\sqrt{e^{\pi\sqrt\ldots}}}}$?
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Feb
8
revised If $\log_{12}54=a$ then $ \log_{6}12=?$
added 4 characters in body; edited title
Feb
8
comment Parametric equation of degree 4
A little more explanation for mere mortals like me please.
Feb
8
revised Limit $\lim_{x\to\infty} \frac {(\ln(x))^k}x$
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Feb
8
comment Limit $\lim_{x\to\infty} \frac {(\ln(x))^k}x$
Is that meant to be $(\ln x)^k$ or $\ln (x^k)$ ?
Feb
6
revised How to show that for $a_n := \left( \frac{(2n)!}{n!n^n} \right)$, $a_n \rightarrow 4/e$
[Edit removed during grace period]
Feb
5
revised Sum $\sum _{ n=1 }^{ \infty }{ \frac { 2n }{ \left( n+1 \right) ! } } $
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Feb
2
revised Limit $\lim\limits_{n\to \infty} \sqrt [n]{\frac{(3n)!}{n!(2n+1)!}} $
deleted 22 characters in body; edited title
Feb
2
comment Why is $\int_0^1 \frac{dx}{\sqrt{1 - x^4}} = \frac{\sqrt{\pi}\,\Gamma(5/4)}{\Gamma(3/4)}$?
math.stackexchange.com/questions/1122911/…
Feb
2
revised Singularities of $ {1}/{\cos(\frac{1}{z})}$
edited title