Question

need help!!! A U (C' U B')
u = abcdefjhijk
a =acdfgi
b=bcdfg
c=abfij

Answer 1

C' is the set of everything that is NOT in set C

Answer 2

so it's like the opposite of set C

Answer 3

If C = {a,b,f,i,j}, then what is C' equal to?

Answer 4

cdeghk

Answer 5

C' = {c,d,e,g,h,k}

good

Answer 6

how about B'

Answer 7

aehijk

Answer 8

Correct, B' = {a,e,h,i,j,k}

Answer 9

Union C' and B' to get ???

Answer 10

a,ehijk U abfij

Answer 11

what overall set do you get when you union those two?

Answer 12

when you union C' = {c,d,e,g,h,k} and B' = {a,e,h,i,j,k}, you just combine the two sets to form a bigger set. You toss out the duplicates

So

C' U B' = {a,c,d,e,g,h,i,j,k}

Answer 13

k

Answer 14

Then you union that with set A