Question

Find A ∩ B if A = {4, 7, 10, 13, 17} and B = {3, 5, 7, 9}. a.{3, 4, 5, 7, 9, 10, 13, 17} b.Ø c.{7}

Answer 1

The answer is option C

Explanation:

A = {4, 7, 10, 13, 17}

B = {3, 5, 7, 9}

To find A ∩ B means to find the intersection of the two sets A and B

To find the intersection find the elements that occur in both sets.

That's for set A and B the elements that occur in both sets is only 7

So we have

A ∩ B = { 7 }

Hope this helps you