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 1.3 Trigonometric Functions - 1.3 Exercises - Page 29: 107



Work Step by Step

1. Distribute $\sec(180^{\circ}n+90^{\circ})$ 2. If n is an integer, then all possible angles are coterminal with either 90 or 270 degree angles. Therefore, the answer is: $\sec 90^{\circ }= sec 270^{\circ }= undefined$
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