U={-5,-4,-3,-2,-1,0,1,2,3,4,5}
A={-5,-4,-3,-2}
B={-4,-2,0,2,4}
C={0,1,2,3}

1.)Find the complement of C.
2.)A U C'
3.) (C U A) and B

Question

U={-5,-4,-3,-2,-1,0,1,2,3,4,5}
A={-5,-4,-3,-2}
B={-4,-2,0,2,4}
C={0,1,2,3}

1.)Find the complement of C.
2.)A U C'
3.) (C U A) and B

watchmath · Answer

do you understand what complement is?

anonymous · Answer

Complement of C, C' = {-5,-4,-3,-2,-1,4,5}, i.e. everything in the universal set that is not in C

anonymous · Answer

A U C' is the combination of everything in A and C'..you know what A is and you know what C' is (see above)..so put it together in one set

anonymous · Answer

(C U A) and B  ?  ?

anonymous · Answer

what do you mean by "and", do you mean U?

anonymous · Answer

I dont like that langauge "and"..I can assume it means U, but then why didnt it say U

anonymous · Answer

If "and" means U, then out all three sets together into one big set.

watchmath · Answer

I think he mant "intersection"

anonymous · Answer

I also think so..but thats why I said that I didnt like that language "and"

anonymous · Answer

intersect"

watchmath · Answer

$$\Large (C\cup A)\cap B$$

anonymous · Answer

Poorly or dubious questions should not be answered. When assessing students, the question should be extremely clear or dont ask the question.

anonymous · Answer

Sorry for getting you guys confuse. :D

anonymous · Answer

OK...so now we know it is intersection..so find everything in C and A...then see whats common in that big set and with A.