1. The problem statement, all variables and given/known data Need to prove these 2 identities of beta function & gamma function ? 2. Relevant equations G(n)G(1-n)= pi/sin npi B(m,n) = (m-1)! / n (n+1).....(n+m+1) 3. The attempt at a solution I tired using beta function in 1st one but did not get the solution .