Question

If A = (-2,7), B = (1,10) <-- these are sets and the intervals they take up

Then, what is (B intersect A)?

I drew the number line, but I do not know if it is:

(1,7)

OR

[1,7]

Answer 1

It is (1,7), because 1 and 7 are not included in the original intervals. Parentheses mean open intervals. So, when you have (1,7), it means that the interval goes ranges 1 to 7, but does not include 1 and 7.
Do you get it?

Answer 2

Yes thank you.

Answer 3

You're welcome.