how 0!=1 Share with your friends Share 1 Abhishek Kr. Jha answered this Kindly refer the following link : https://www.meritnation.com/ask-answer/question/what-is-0-factorial-give-proof/chemical-bonding-and-molecular-structure/2856254 0 View Full Answer G.sushma answered this nPr=n!/(n-r)! putting n = r, = nPn=n!/0! = n!=n!/0! = 0!=n!/n! So, 0!=1 2
