Question

If U={1,2,3,4,5,6,7,8,9} P={1,2,3,4} Q={4,5,6} then in terms of P and Q {7,8,9} may be described as

Answer 1

Answer:

U={1,2,3,4,5,6,7,8,9} P={1,2,3,4} Q={4,5,6} then in terms of P and Q {7,8,9} may be described as