Trigonometry (11th Edition) Clone

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

Chapter 1 - Trigonometric Functions - Section 1.4 Using the Definitions of the Trigonometric Functions - 1.4 Exercises - Page 37: 8

Answer

Impossible.

Work Step by Step

For any value of $\theta$, we know that $\cos\theta\in$ [-1,1]. Because $1.5\gt1$, it is impossible to find a value of $\theta$ that satisfies $\cos\theta=1.5$
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