Question

A = {x:xis a prime number <20)
B = {x: x is a odd number < 12}
C = {x:x is a multiple of 3 and <20}
D = {x:xis a even number <15)
Find (i) AB (ii) B-C (iii) Dno (iv) AUD​

Answer 1

Answer:

A={2,3,5,7,11,13,17,19}

B={1,,3,5,7,9,11}

C={3,6,9,12}

D={2,4,6,8,10,12,14}