Algebra and Trigonometry 10th Edition

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

Chapter 7 - Review Exercises - Page 552: 22

Answer

The identity is verified. $cot(\frac{\pi}{2}-x)~csc~x=sec~x$

Work Step by Step

$cot(\frac{\pi}{2}-x)=tan~x$ $csc~x=\frac{1}{sin~x}$ $sec~x=\frac{1}{cos~x}$ $cot(\frac{\pi}{2}-x)~csc~x=tan~x~\frac{1}{sin~x}=\frac{sin~x}{cos~x}~\frac{1}{sin~x}=\frac{1}{cos~x}=sec~x$
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