Question

A={x:x=3n-1,n€N,2<n<7},B={8,11,14,17}. find A-B and B-A​

Answer 1

Answer:

$n = (3 \: \: \: \: 4 \: \ \: \: \: 5 \: \: \: \: 6) \\ a = (8 \: \: \: \: 11 \: \: \: \: \: \: 14 \: \: \: \: \: 17) \\ b = (8 \: \: \: \: 11 \: \: \: \: 14 \: \: \: \: \: 17) \\ \\ a - b = phi \\ \\ b - a = phi$