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If you solve this I'd award you with 500rep


2d
revised Prove that $ x^n - y^n = (x-y) (x^{n-1}+x^{n-2}y\,+ \,\,…\,\,+ y^{n-1})$
edited title
Apr
20
revised Finding Distinct Elements and Permutation in Partitioned Set
edit according to OP confirmation
Apr
11
revised Question about finding where the function increases and decreases on $f(x)=\frac 1{x}$
added 2 characters in body
Apr
10
revised Prove that $ x^n - y^n = (x-y) (x^{n-1}+x^{n-2}y\,+ \,\,…\,\,+ y^{n-1})$
Some time passed since this was asked, enough to give the full solution.
Apr
6
revised Prove Matrix Power for 2x2 matrix using mathematical induction
added 6 characters in body
Apr
5
revised How to understand Cauchy's proof of AM-GM inequality(the last step)
deleted 6 characters in body
Apr
5
revised How to understand Cauchy's proof of AM-GM inequality(the last step)
Formatting
Apr
4
revised How to understand Cauchy's proof of AM-GM inequality(the last step)
deleted 6 characters in body
Mar
27
revised Riemann-integrable functions and pointwise convergence
expanding on details
Mar
19
revised How prove this matrix limit is $\lim_{m\to\infty}A^mx=\left(\dfrac{e}{n}\right)$
edited title
Mar
18
revised Prove that a subset of a separable set is itself separable
added 2 characters in body
Mar
14
revised Prove continuity of a function
formatting
Mar
12
revised What exactly are fractals
"in" missed
Feb
11
revised If Gal(K,Q) is abelian then |Gal(K,Q)|=n
formatting
Feb
7
revised Solve the equation, for $p$ prime, $x^{2p}- x^p= [6]$, in $\mathbb {Z}_p$
formating. typos
Feb
4
revised How can I show that an odd degreed polynomial with coefficients in the real space always has a root in $\mathbb{R}$?
Superfluous tag
Feb
1
revised How to show these two definitions of the Riemann integral are equivalent?
SPELLING
Jan
28
revised Show that $S_3$ is presented by $\langle a,b\mid a^3, b^2,ab=ba^2\rangle$
TeX
Jan
22
revised Prove or disprove: if $∑_{n=0}^∞a_n$ converges and $\lim_{n→∞}⁡b_n =0$, then $∑_{n=0}^∞a_n b_n$ converges.
edited title
Jan
21
revised How to show these two definitions of the Riemann integral are equivalent?
I had mistaken definitions