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Apr
19
comment How to generate complicated looking identities such as $\sqrt [3] {2 + \sqrt 5} - \sqrt [3] {2 - \sqrt 5}=1$ easily?
@PrasunBiswas : yes I agree nothing can be that general, is there even a taxonomy of identies or the their generating families exist?
Apr
19
comment How to generate complicated looking identities such as $\sqrt [3] {2 + \sqrt 5} - \sqrt [3] {2 - \sqrt 5}=1$ easily?
@PrasunBiswas : holy hell, what generates identities like that?
Apr
19
revised Limit $\lim_{x→0} x^{x^x}$
edited title
Apr
19
asked How to generate complicated looking identities such as $\sqrt [3] {2 + \sqrt 5} - \sqrt [3] {2 - \sqrt 5}=1$ easily?
Apr
18
comment Does every integer occur finitely many times and in what positions in Pascal's triangle?
@Archaick thank you
Apr
18
asked Does every integer occur finitely many times and in what positions in Pascal's triangle?
Apr
11
comment Deriving the value of $\pi$ from a dart board
Lookup bufons needle; no it is not
Mar
29
comment Is my $1+1+1+1+1…=-\frac{1}{2}$ proof correct?
Why down vote for asking a question and showing the work behind it, even if it is wrong it is a question with effort put into it +1 from me
Mar
21
awarded  Popular Question
Mar
20
revised Integral $\int_0^1\sqrt[2\,n\,]{\frac x{1-x}}\,\mathrm dx$
edited title
Mar
18
revised Calculus Proving
extreeme usage of $, trim the $ man!
Mar
17
comment Integral $\int \frac{x^2}{\sqrt[] {3-x^3} } \operatorname d \! x$
Changed your first image to a Mathjax, look up the FAQ for the site on how to do latex or google Mathjax.
Mar
17
revised Integral $\int \frac{x^2}{\sqrt[] {3-x^3} } \operatorname d \! x$
added 16 characters in body; edited title
Mar
17
comment Whether it is the pigeonhole principle?
It would be good that you include your own thoughts on this problem.
Mar
2
comment Prove $1+2\sqrt3$ is not a rational number
25 years ago one used to say rationals are closed under addition and multiplication, is this new terminology now?
Mar
2
comment Prove $1+2\sqrt3$ is not a rational number
I didn't down vote. What does " addition and multiplication is stable" means?
Feb
28
revised Sum $\sum_{n=1}^{\infty}\frac{1}{(9n-1)(9n+1)}$
edited tags; edited title
Feb
26
revised Sum $\sum _{k=0}^{\infty } \frac{(-1)^k \psi (k+1)}{\left(k-\frac{3}{2}\right)^2}$
edited title
Feb
25
revised Series $\frac{1}{4}+\frac{1\cdot 3}{4\cdot 6}+\frac{1\cdot 3\cdot 5}{4\cdot 6\cdot 8}+\cdots$
deleted 3 characters in body; edited title
Feb
25
revised Integral $ \int_{0}^{\pi/2} \frac{\pi^{(x^{e})}\sin(x)\tan^{-1}(x)}{\sinh^{-1}\left({1+\cos(x)}\right)} dx$
edited title