Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 7 - 7.1 - Using Fundamental Identities - 7.1 Exercises - Page 514: 67

Answer

True. The other four trigonometric functions, $tan~x,~cot~x,~sec~x,~csc~x$ can be written as functions of $sin~x$ and $cos~x$.

Work Step by Step

$tan~x=\frac{sin~x}{cos~x}$ $cot~x=\frac{cos~x}{sin~x}$ $sec~x=\frac{1}{cos~x}$ $csc~x=\frac{1}{sin~x}$
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