Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 7 - Section 7.1 - Trigonometric Identities - 7.1 Exercises - Page 542: 4


$\cos t\csc t=\cot t$

Work Step by Step

$\cos t\csc t$ Substitute $\csc t$ with $\dfrac{1}{\sin t}$ and simplify: $\cos t(\dfrac{1}{\sin t})=\dfrac{\cos t}{\sin t}=\cot t$
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