Question

If A = {…−6, −4, −2} and B = {1, 2, 3, …}, what is A ∩ B?

Answer 1

\[a\in A\cup B\space iff\space a \in A \space and \space a \in B\]

Answer 2

are there any numbers that are in both sets?

Answer 3

@sarahbh123 ?

Answer 4

yes? @zzr0ck3r

Answer 5

what number is in both sets?

Answer 6

idk

Answer 7

you said yes

Answer 8

do you see any number on the left set that is in the right set?

Answer 9

first off all the numbers in set A are negative and all the numbers in set B are positive, so how can there be a number that is in both sets

Answer 10

so the intersection is {}
the emptyset