1Can u tell why factorial 0 and factorial 1 has same value as 1?
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Shubham Pal | 01/04/2019
Concept is related to permutations, since n! Denotes the number of ways in which the n things can be arranged. So 0! is a number in which you can arrange zero things or an empty set { }, that is 1. Another explaination is- since (n-1)!= n! / n, by this rule we can say 0!= 1
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