## Multivariable Calculus, 7th Edition

Published by Brooks Cole

# Chapter 10 - Parametric Equations and Polar Coordinates - 10.3 Exercises: 22

#### Answer

$cosθ-sinθ=0$

#### Work Step by Step

$x=y$ $rcosθ=rsinθ$ $cosθ=sinθ$ $cosθ-sinθ=0$

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