Get solution: Finding the Principal Unit Normal Vector In Exercises 1320, find the
Chapter 12, Problem 19(choose chapter or problem)
Finding the Principal Unit Normal Vector In Exercises 13-20,find the principal unit normal vector to the curve at the specified value of the parameter.
\(\mathbf{r}(t)=6 \cos t \mathbf{i}+6 \sin t \mathbf{j}+\mathbf{k}, \quad t=\frac{3 \pi}{4}\)
Text Transcription:
r(t)=6 cos ti + 6 sin tj + k, t=3 pi/4
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