(732, #45) Find parametric equations for the tangent line to the curve
with the parametric equations at the point (1, 1, 1).

Solution:

The parameter corresponding to the point (1, 1, 1) is t = 1, so

So the parametric equations for the tangent line to the curve
with parametric equations at the point (1, 1, 1) are:

by: gm