## Trigonometry 7th Edition

Published by Cengage Learning

# 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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