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 xy part is just a circle. So, as xy moves around the circle, z bobs up and down twice. It's saddleshaped.
Visit wolframalpha.com and type
plot x=cos(t), y=sin(t), z=cos(t)
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