Hello everyone!

I have been having some trouble with this problem and was hoping that you guys could help me out.

Find parametric equations for the tangent line at the point

http://webwork2.asu.edu/webwork2_fil...16c65457d1.png on the curve http://webwork2.asu.edu/webwork2_fil...4400b3a0c1.png

I dont really know where to start, other than finding the derivative, which is x=-sin(t), y=cos(t), and z = 1. Thanks for any help.