Question

The smallest set A such that Au{1, 2} = {1, 2, 3, 5, 9} is​

Answer 1

Answer:

A=(3,5,9)

Step-by-step explanation:

A∪{1,2}={1,2,3,5,9}

Thus

A={1,2,3,5,9}−{1,2}

Hence

A={3,5,9}