Answer
a. r'(t) = $-4\sin(t)i+4\cos(t)j$
b. r''(t) = $-4\cos(t)i-4\sin(t)j$
c. r'(t) r''(t)= $0$
Work Step by Step
$$\boxed{\textbf{Please see attached image.}}$$
Calculus 10th Edition
by Larson, Ron; Edwards, Bruce H.
Published by
Brooks Cole
ISBN 10:
1-28505-709-0
ISBN 13:
978-1-28505-709-5
Chapter 12 - Vector-Valued Functions - 12.2 Exercises - Page 830: 23
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