Trigonometry (11th Edition) Clone

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

Chapter 5 - Trigonometric Identities - Section 5.2 Verifying Trigonometric Identities - 5.2 Exercises - Page 210: 96


The given equation is NOT an identity.

Work Step by Step

Use a graphing utility to graph $y=\dfrac{1}{1+\sin{x}}+\dfrac{1}{1-\sin{x}}$ and $y=\sec^2{x}$. (Refer to the graphs below.) Note that the graphs are different from each other This means that the given equation is not an identity.
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