Question

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

Answer 1

For this case we have the following sets:

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

B = {2,4}

We must find the intersection of both sets, the symbol ∩ denotes intersection. That is, the numbers in common of both.

We have to:

A∩B = {2,4}

Answer:

The insterseccion of both sets is:

A∩B = {2,4}

Answer 2

$A\cap B=\{x:x\in A \wedge x\in B\}$

$A\cap B=\{2,4\}$