Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 5 - Trigonometric Functions - Chapter Test - Page 460: 3


$\dfrac{13\pi}{180} \ rad $

Work Step by Step

In order to convert the value from degrees to radians, we multiply by $\dfrac{π}{180^{\circ}}$. Therefore $13^{\circ}=(13) \times \dfrac{\pi}{180}\text{radians} \\=\dfrac{13\pi}{180} \ rad $
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