Question

i give medals

If A = {positive integers} and B = {...,−4, −3, −2, −1} what is A ∩ B?

A.) { }
B.) {..., −3, −2, −1, 1, 2, 3, ...}
C.) {1, 2, 3, 4, ...}
D.) {...−3, −2, −1}

Answer 1

If A is all positive integers and B is all negative integers does A and B have any element in common?

Answer 2

no

Answer 3

so its A?

Answer 4

Yes.

Answer 5

thk you