Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 2 - Section 2.1 - Definition II: Right Triangle Trigonometry - 2.1 Problem Set: 36

Answer

$\frac{5}{4}$

Work Step by Step

Given expression- = $ 5 (\sin 30^{\circ})^{2}$ = 5 $ (\frac{1}{2})^{2}$ [ substituting exact value of $ \sin 30^{\circ}$] = $ 5 \times \frac{1}{4}$ = $\frac{5}{4}$
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