Question

A = {x : x is natural number and multiple of 3} B = {x : x is a prime number less than 19} Find a) A – B

Answer 1

Answer:

A={3,6,9,12,15,18} B={2,3,5,7,11,13,17}

A-B={6,9,12,15,18}

Answer 2

Step-by-step explanation:

A={3,6,9,12,15,18...},

B={2,3,5,7,11,13,17}

Therefore, A-B={6,9,12,15,18....}

B-A={2,5,7,11,13,17}