Question

Find the intersection, An B, for of the following pair of sets. Enter "DNE" for the empty set.A= (-oo, -9), B= (9, oo)

Answer 1

To find:

The intersection of both sets.

Solution:

The intersection of two sets is a set which contains the common elements of both sets.

Here, set A contains all the real numbers less than -9 and set B contains all real numbers greater than 9. Therefore, no element is common in them. So, the intersection of A and B is an empty set.

So, the answer is DNE.