Question

Universal set problem help

Answer 1

A U B is all of the elements in set A and in set B

Answer 2

\[A \cap B \] is what elements do set A and set B have in common
B' means what's NOT in set B

Answer 3

9a A U B is all of the elements in set A and set B, so what are they?

Answer 4

{1,2,3,4,5}

Answer 5

yes that A U B [1,2,3,4,5}

Answer 6

ugh I messed up on the last one \[A' \cap B \] which means what elements do NOT in set A and set B have in common
second one is don't consider elements in B

Answer 7

second one B' means elements NOT in B
The number 3 is in A and B so we can remove that. there should be only 2 numbers left

Answer 8

{1,5,6}

Answer 9

I think this is only concerning sets A and B... so there should be just 1 and 5. Then again, it has been a while since I've done this. @zarkon what do you think? is B' = 1,5 or B'=1,5,6

Answer 10

B'={1,5,6}

Answer 11

ah I see it's the whole universe. U = 1 2 3 4 5 6 that's involved
B = 2,3,4
NOT B would be 1 5 6

Answer 12

I got that too

Answer 13

<--- this is what happens when you don't practice for a while. brain slush XD

Answer 14

\[A' \cap B\]
U = 1,2,3,4,5,6
set A = 1,3,5
set B = 2,3,4
so not A would be all even numbers
set A' = 2,4,6
what does

A' =2 4 6
B = 2 3 4
have in common?