Prove the given identity using the shortest method possible
95633
Help with this trigonometry problem
90904
Combinatorial proof of an identity with squared binomial coefficients
44484
Combinatorial identity $i{n \choose i } =n {n-1 \choose i - 1}$
100788
Proving Newton's identities
61671
Discrete Math: Writing Proofs
109648
Proving an identity for Bernoulli polynomials
125174
Combinatorial intuition of identity
130722
Can you prove this property?
50202
Probablity identities and $A$ given $B$
74523
Proof by Cases involving divisibility
33104
Combinatorial Proof with Summation Identity
50804
It seems obvious, but how to prove it formally?
36388
How to derive this Combinatorial identity
5934
How to prove floor identities?
151038
How to prove (A v B), (A → C), (B → D) therefore (C v D)
26741
How to prove for $s<1,|a+b|^s\le|a|^s+|b|^s$
19018
Proving Pascal's identity