Questions
Let A and B be two sets containing four and two elements respectively. Then the number of subsets of the set A x B, each having at least three element is
detailed solution
Correct option is A
n(A) = 4n(B) = 2n(AxB) = 8So atleast 3 =total - none - one -two digits=28-1-8C1-8C2 = 28 -1-8-28 = 28 -37= 256 - 37 = 219.Similar Questions
Let A = {1,2,3} and B= {2,3,4}, then which of the following relations is a function from A to B
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