Question
Sat January 05, 2013 By: Shivam Arora

Prove that the total no of subsets of finite set containing n elements is 2n

Expert Reply
Sun January 06, 2013
you can use permutation combination,
no. of subset=no. of ways of selecting element from a n element set
 as there are n elements and each element will have two choices either we should select or leave it,and we have to use all the elements so there will be 2*2*2*2..........n times ways to select elements from a n element set. so no. of subset=2^n
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