#### Answer

Three

#### Work Step by Step

$\textbf{r} = \langle f(t), g(t), h(t) \rangle$
$\textbf{r}$ has the scalar functions $f(t), g(t),$ and $h(t)$.

Published by
Pearson

ISBN 10:
0321947347

ISBN 13:
978-0-32194-734-5

Three

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