Question

Find A ∩ B.

A) {3,5,6,7,8,11,12}
B) {3,5,6,7,8,12}
C) {3,7,6,5}
D) {3,7}

Answer 1

`\large\boxed{A \ \cap\ B=\{3,\ 7\}}`

Explanation:

The intersection of two sets A and B, consists of all elements that are both in A and B.

Therefore:

`A \ \cap\ B=\{3,\ 7\}`

Look at the picture.