Posted by **Anonymous** on Sunday, April 21, 2013 at 10:21pm.

Graph the parametric equations:

x=cos(t) y=sin(t) z=cos(2t)

How would I go about solving this problem? thanks!

- Calculus -
**Steve**, Monday, April 22, 2013 at 12:19am
well, you know that the x-y part is just a circle. So, as x-y moves around the circle, z bobs up and down twice. It's saddle-shaped.

Visit wolframalpha.com and type

plot x=cos(t), y=sin(t), z=cos(t)

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