Thomas' Calculus 13th Edition

Published by Pearson
ISBN 10: 0-32187-896-5
ISBN 13: 978-0-32187-896-0

Chapter 1: Functions - Questions to Guide Your Review - Page 36: 12

Answer

The symmetry for sine is $sin(\theta+\pi)=-sin(\theta)$ The symmetry for cosine is $cos(\theta+\pi)=-cos(\theta)$ The symmetry for tangent is $tan(\theta+\pi)=tan(\theta)$ The symmetry for secant is $sec(\theta+\pi)=-sec(\theta)$ The symmetry for cosecant is $csc(\theta+\pi)=-csc(\theta)$ The symmetry for cotangent is $cot(\theta+\pi)=cot(\theta)$

Work Step by Step

Use a graphing calculator The symmetry for tangent can be calculated as $tan(\theta+\pi)=\frac{sin(\theta+\pi)}{cos(\theta+\pi)}=\frac{-sin(\theta)}{-cos(\theta)}=tan(\theta)$
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