Kenneth S. answered • 01/28/17

Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018

By definition of UNION,

**A U A'**is the set of everything in set A OR outside set A--which is U, the universal set of this problem.

*It is extremely unfortunate that the universal set is named letter U which appears identical to the Union symbol.*

To resolve A' ∩ C, look for things in set C that are ALSO in A:, so first, A' = (2,4,6,8}.

Final answer: A' ∩ C, = {2, 8}.

Now you can do some work: what is B' ? After you list this, decide what AUB' is by taking anything in B' or in A, or both.

Study these so that you become self-reliant.

Kenneth S.

B' = {6,7,8,9} i.e. everything outside B that is within the universal set.

Therefore A∪B' = {1,3,5,6,7,8,9} ... listed in ascending order to preserve sanity.

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01/28/17

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01/28/17