Calculus 8th Edition

Published by Cengage
ISBN 10: 1285740629
ISBN 13: 978-1-28574-062-1

Chapter 10 - Parametric Equations and Polar Coordinates - 10.3 Polar Coordinates - 10.3 Exercises - Page 706: 15


A circle with radius $\sqrt5$, centered at $(0,0)$.

Work Step by Step

$r^2=5$ Since $r^2=x^2+y^2$, we get: $x^2+y^2=5$ This is the circle formula ($x^2+y^2=r^2$) and describes a circle with radius $\sqrt5$, centered at $(0,0)$.
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