Question

If I have P={5, 6, 7} and Q={3,4,5,6,7}
Find P U Q?
Is this right? P U Q ={3,4,5,6,7}

Answer 1

Also the intersection.
Is the intersection? {5,6,7}

Answer 2

Your answer is correct, the reason being P is a subset of Q.

Answer 3

Thank you! I thought that was how to do it but I'm still trying to remember. What about the intersection? is it {5,6,7}?

Answer 4

If I have a 3rd set of R{1.2}

Answer 5

The intersection of two sets is the set of all elements in both of the sets {5, 6, 7}.

Answer 6

Ok, thanks

Answer 7

The set R = {1.2} does not contain an integer. Sets P and Q both consist of integers.

Answer 8

ok