Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning
ISBN 10: 1285741552
ISBN 13: 978-1-28574-155-0

Chapter 12 - Section 12.1 - Three-Dimensional Coordinate Systems - 12.1 Exercises: 33

Answer

A sphere with center at the origin and radius 2.

Work Step by Step

$x^2+y^2+z^2 = r^2$ is the given formula for a sphere with center at the origin. With that information given, we find the radius to be $r= \sqrt(r^2)= \sqrt 4 = 2$
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