Answer
(a), (c), and (d).
Work Step by Step
These three equations all trace a circle of radius $1$ centered around the point $(-2, 9, 3)$ since the constant terms in the x, y, and z components are $-2$, $9$, and $3$, respectively.
Calculus (3rd Edition)
by Rogawski, Jon; Adams, Colin
Published by
W. H. Freeman
ISBN 10:
1464125260
ISBN 13:
978-1-46412-526-3
Chapter 14 - Calculus of Vector-Valued Functions - 14.1 Vector-Valued Functions - Preliminary Questions - Page 709: 6
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