Question

IfA and B are two sets such that Ac B then what is AUB?​

Answer 1

Answer:

B

Step-by-step explanation:

A⊂B means all the elements of A are in B.

So A∪B = A + B - A∩B

Since A⊂B, we can say A∩B = A

A∪B = A + B - A = B