   Chapter P.CR, Problem 12CR Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Solutions

Chapter
Section Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

If N A ∪ B = 69 ,     N A = 35 ,   and N B = 47 , find N A ∩ B .

To determine

To find:

NAB

Explanation

Formula:

The number of elements in the set AB is given by the formula:

NAB=NA+NB-NAB

By rearranging the terms of this formula, we can find the value of NAB

Calculation:

It is given that, NAB=69, NA=35, and NB=47

Let’s substitute the given values in the formula to find the number of elements in AB

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