Question

If A = {x / x = y2 and y < 10} B = {x/x = y^3; and y < 10}then find
n(A), n(B), n(AUB), n(An B).​

Answer 1

A = {1,4,9,16,25,36,49,64,81}

B = {1,8,27,64,125,216,343,512,729}

n(A) = 9

n(B) = 9

n(A U B) = 16

n(A n B) = 2

Hope it helps you!!