An interesting identity involving powers of $\pi$ and values of $\eta(s)$
38760
Infinite Series $\sum\limits_{n=0}^\infty\frac{(-1)^n}{(2n+1)^{2m+1}}$
20945
On a series involving harmonic numbers
123136
Proof of the identity: $c\sin \frac{A-B}{2} \equiv (a-b) \cos \frac{C}{2}$
139057
Showing that $\frac{1}{2\pi}\int^{2\pi}_{0}(2\cos\theta)^{2n}d\theta=\frac{(2n)!}{n!n!}$
83981
How to prove those "curious identities"?
96961
A proof for the identity $\sum_{n=r}^{\infty} {n \choose r}^{-1} = \frac{r}{r-1}$
34017
Show that $n^{\pi\left(2n\right)-\pi\left(n\right)}2$
92416
About a sum of Legendre symbols associated to an odd prime
12280
A dilogarithm identity?
36388
How to derive this Combinatorial identity
122481
proof of an identity for exponential function
119628
Proving an identity relating to the complex modulus: $z\bar{a}+\bar{z}a \leq 2|a||z|$
32791
Proving this binomial identity $\sum_{k=0}^n {n+k \choose k} \frac{1}{2^{k}}= 2^{n}$
45725
Derivation of an identity with beta function.
157946
Elementary derivation of certian identites related to the Riemannian Zeta function and the Euler-Mascheroni Constant
126574
Proving $\prod_k \sin \pi k / n = n / 2^{n-1}$
76902
Variation on Vandermonde's identity