Question

If U= {21, 22, 23, 24, 25, 26, 27, 28, 29, 30} A = {21, 22, 23, 24, 25} and B = {24, 26, 28, 30}, find A – B​

Answer 1

Step-by-step explanation:

A-B={21,22,23,25,26,28,30}