Calculus: Early Transcendentals (2nd Edition)

Published by Pearson
ISBN 10: 0321947347
ISBN 13: 978-0-32194-734-5

Chapter 14 - Vector Calculus - 14.6 Surface Integrals - 14.6 Exercises - Page 1123: 20

Answer

The equation of the surface of a cylinder can be expressed as: $y^2+z^2=36$ for $0 \leq x \leq 2 $ with radius $6$ and height of $2$ along x-axis.

Work Step by Step

We are given the parametric equation of the cylinder as: $r (u, v)=\lt v, 6 \cos u, 6 \sin u \gt$ and $0 \leq u \leq 2 \pi; 0 \leq v \leq 2 $ Suppose that $u=x; y=6 \cos u ; z=6 \sin u$ So, we have: $y^2+z^2=36$ for $0 \leq v \leq 2 \implies 0 \leq x \leq 2 $ Thus, the equation of the surface of a cylinder can be expressed as: $y^2+z^2=36$ for $0 \leq x \leq 2 $ with radius $6$ and height of $2$ along x-axis.
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