Question

7. For A = {x|x is a prime factor of 42}, B ={x|1< x ≤ 8, x ∈ N}.property of set union

Answer 1

Answer:

A={2,3,7,23}

B={2,3,4,5,6,7,8}

A⋃B={2,3,4,5,6,7,8,23}