Question

किसी समुच्चय में 4 अवयव हैं । तब उसके झात समुच्चय में कितने अवयव होंगे? ??? DON'T SPAM ​

Answer 1

For a set with n items, the number of elements in its power set is the total number of possible subsets of that set. So how many subsets are there?

Consider this. The A= {x1,x2,..xn} be your set of n elenents. While constructing a subset S, for each element we are faced with a choice: do we include it or not. Since there are n elenents, we get n choices each with 2 possible outcomes. Thus the total number of ways to do it will be 2n .

Thus for 4 elements the number of subsets are 2⁴=16.

Answer 2

Answer:

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