Math, asked by lakadesanika0215, 1 month ago

Prove that i) (n+1)P( r+1)= (n+1) nPr ii) nPr= (n-r+1) nPr-1
question of permutation and combination

Answers

Answered by Sandipon998

0

Answer:

I dont have proof

Step-by-step explanation:

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