If A={a,b,c,d}. How many subsets does the set A have?

1) How many subsets does a set A ={a,b,c,d} have?

Prove that (i) if a set has only one element , then it has 2 subsets . (ii) If BsubA and if B has one elements less than that of A, prove that A has twice as many subsets as B . (iii) Deduce from these two results that a set with 2 elements has 2^(2) subsets , a set with 3 elements has 2^(3) subsets , and so on . How many subsets does a set with n elements have ?

Let A={1,2,3,4,5,6,7,8,9). How many subsets does A have which contain 4,5 and 6?

Deduce from these two results that a set with 2 elements has 2^2 subsets, a set with 3 elements has 2^3 subsets, and so on. How many subsets does a set with n elements have ?

If A = {a, b, c}. Write all the subsets of set A.

Consider the set A. How many subsets does P(A) have ?[P(A) represents the Power set of the set A].

Consider the sets A = {x:x is an integer and -3 le x lt 1 ) and B = {x:x is a letter in the word INDIA} How many subsets does A have? Write all possible subsets of A. Hence, construct the power set of A

If A has 4 elements.How many subsets does A has?

If A and B be subsets of a set X . Then