Question

How do u answer this;(

Answer 1

(a) A = {4, 9, 16}

B = {4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20}

C = {5, 10, 15, 20}

(b) B and C' = {4, 6, 8, 9, 12, 14, 16, 18}.

There are 8 elements.

(c) P(B and C') = 8/19