Question

Prove the following
p(n,n) = 2p (n,n-2)
p(n,r) = p(n-1, r) + r , p(n-1, r-1)
​p(n, n) = p(n, n-1)
p(n,r) = n.p(n-1,r-1)

Answer 1

Step-by-step explanation:

The answer is in above picture