Show that the graph ofr = 3 costi + 3 sin t j + 3 sin tkis an ellipse, and find the
Chapter 12, Problem 42(choose chapter or problem)
Focus on Concepts
Show that the graph of
\(\mathbf{r}=3 \cos t \mathbf{i}+3 \sin t \mathbf{j}+3 \sin t \mathbf{k}\)
is an ellipse, and find the lengths of the major and minor axes.
[Hint: Show that the graph lies on both a circular cylinder and a plane and use the result in Exercise 44 of Section 10.4.]
Equation Transcription:
𝐫𝐢𝐣𝐤
Text Transcription:
r=3 cos ti+ 3 sin tj+3 sin tk
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