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Apr
27
comment Average distance between 2 points on surface of sphere?
@achillehui : just a curiosity , is there a generalisation that generalises geodesic distance to n dimensions?
Apr
27
comment Average distance between 2 points on surface of sphere?
@CameronWilliams : How can I generalise that to spheres of n dimesion? That is the motivation for asking this question.
Apr
19
comment How to generate complicated looking identities such as $\sqrt [3] {2 + \sqrt 5} - \sqrt [3] {2 - \sqrt 5}=1$ easily?
@PrasunBiswas : that specific result or a more general form that makes that as a specific value?
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
18
comment Does every integer occur finitely many times and in what positions in Pascal's triangle?
@Archaick thank you
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
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
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
21
comment The value of $ \int _{0}^{1}x^{99}(1-x)^{100}dx $ is
@NS : was not having a go at you, just letting you know. And of course I might be wrong
Feb
21
comment The value of $ \int _{0}^{1}x^{99}(1-x)^{100}dx $ is
There have been similat questions to this before on this site
Feb
18
comment How can I prove that these two series diverge?
Does it diverge for all x or for the values greater than lets say x=1/8?
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
8
comment Parametric equation of degree 4
A little more explanation for mere mortals like me please.
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
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
comment Find the parametric equation of a circular helix in space with central axis the $z$-axis and radius $5$.
Leave b as b, you don't need a specific value for it.