Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 2 - Acute Angles and Right Triangles - Section 2.3 Finding Trigonometric Function Values Using a Calculator - 2.3 Exercises - Page 66: 26

Answer

$\cos$ (90$^{\circ}$ - 3.69$^{\circ}$) = 0.06435814

Work Step by Step

$\cos$ (90$^{\circ}$ - 3.69$^{\circ}$) 90$^{\circ}$ - 3.69$^{\circ}$ = 86.31$^{\circ}$ Therefore: $\cos$ (90$^{\circ}$ - 3.69$^{\circ}$) = $\cos$ 86.31$^{\circ}$ $\cos$ 86.31$^{\circ}$ = 0.06435814 Therefore: $\cos$ (90$^{\circ}$ - 3.69$^{\circ}$) = 0.06435814
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