College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter R - Section R.5 - Rational Expressions - R.5 Exercises - Page 47: 10



Work Step by Step

Suppose x = 2 and y = 3. $\frac{1}{x}+\frac{1}{y}+\frac{1}{2}+\frac{1}{3}=\frac{3+2}{6}=\frac{5}{6}$ $\frac{1}{x+y}=\frac{1}{2+3}=\frac{1}{5}$ Thus, $\frac{1}{x}+\frac{1}{y}=\frac{1}{x+y}$.
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