Originally Posted by

**ocryan** That does make sense, however, it seems that there must have been a miscalculation somewhere?

These are my answer choices...

-3 sin t, 3 cos t, -1

3 sin t, 1 , -3 sin t

1, 3 cos t, -3 sin t

3 cos t, -3 sin t, 1

-1, 3 sin t, -3 cos t

3 cos t, -1, -3 sin t

plane and sphere don't intersect.

Given those, your answer of -1, 3 cos t, 3 sin t, isn't available...

Oh, also a question I had that is a part of another question, what is the vector function for a circular cylinder of radius 1?