College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter P - Summary, Review, and Test - Review Exercises: 45



Work Step by Step

$\sqrt \frac{121}{4}=\frac{\sqrt {121}}{\sqrt 4}=\frac{11}{2}$ We know that $\sqrt 121=11$, because $11^{2}=121$. We know that $\sqrt 4=2$, because $2^{2}=4$.
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