Question

Let A = {1, 2, 3, 4, 5} and B = {2, 4}. What is A ∩ B?

Answer 1

A ∩ B = {2, 4}

Explanation:

Definition: The intersection A ∩ B of two sets A and B is the set that contains all elements of A that also belong to B.

For example:

If x∈A and x∈B

then;

x∈ A ∩ B

Given the sets:

A = {1, 2, 3, 4, 5} and B = {2, 4}

We have to find A ∩ B.

By definition we have;

A ∩ B = {2, 4}

Therefore, the value of A ∩ B is, {2, 4}