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February 1, 2015

February 1, 2015

Posted by **Jen** on Saturday, July 9, 2011 at 10:32am.

Given U = {10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20}, A = {12, 14, 16, 18, 20}, and B = {11, 13, 14, 15, 18, 19, 20}.

Find A′ ∩ B′. Do not skip to the answer. Show your work, finding A’, then B’ then find their intersection.

- Math-geometry -
**MathMate**, Saturday, July 9, 2011 at 7:54pmA' is the same as U-A, i.e. all the elements of A' must be in U but NOT in A.

So A'={10,11,13,15,...}

and

B'={10,12,...}

A'∩B' contains elements that are members of both A' and B', or

A'∩B' = {10,...}

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