Answer: In Exercises 7378, find the vectors T and N, and the unit binormal vector for
Chapter 12, Problem 78(choose chapter or problem)
In Exercises 73–78, find the vectors T and N, and the unit binormal vector for the vector-valued function r(t) at the given value of t.
\(\mathbf{r}(t)=3 \cos 2 t \mathbf{i}+3 \sin 2 t \mathbf{j}+t \mathbf{k}\) \(t_{0}=\frac{\pi}{4}\)
Text Transcription:
r(t)=3 cos 2 t i+3 sin 2 t j+t k
t_0= pi/4
B=T times N
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