Question

what does A complement intersect B mean?

Answer 1

the elements the -A and B have in common?

Answer 2

think of an intersection as the place where 2 roads meet, and are the same.

Answer 3

Perhaps a Venn diagram can help you visualize it better.

The complement of A is everything that's outside of the A circle. Now what's common between that and B? Essentially, everything that's in B but not in A.

So, the complement of A intersect of B is the same as B - A (the elements of B which are not in A as well)