Question

Find A B.
A: {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}
B: {−2, −1, 1, 4, 7, 11}

{−2, −1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}

{1, 4, 7, 11}

{−2, −1, 1, 2, 3, 4, 5, 6}

{ }

Answer 1

is that AUB ? U is the union of both sets?

Answer 2

yeaaa

Answer 3

Alright, what do you know about U what is it and what does it do to both sets?

Answer 4

wait, you don't have 12 in the first answer? are you sure its union? what about A intersects B?

Answer 5

its not union my bad

Answer 6

yea i reckon its intersects

Answer 7

yeaaaaaa that it wont leme put it in tho

Answer 8

dw

Answer 9

try doing it like this..