Answer
$ r=\frac{2}{cos\theta + sin \theta}$
Work Step by Step
$x+y=2$
To convert this equation into a polar equation, put $x=rcos\theta$ and $y=rsin \theta$
$rcos\theta + rsin \theta =2$
$ r=\frac{2}{cos\theta + sin \theta}$
Calculus: Early Transcendentals 9th Edition
by Stewart, James
Published by
Cengage Learning
ISBN 10:
1337613924
ISBN 13:
978-1-33761-392-7
Chapter 10 - Review - Exercises - Page 720: 19
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