The tangent line to a smooth curve r(t) = f(t)i+g(t)j+h(t)k at t = to is the line that passes through the point (f(to).9 (to).h (to)) parallel to v (to), the curve's velocity vector at to. User (to) and r' (to) to find parametric equations for the line that is tangent to the given curve at the given parameter value t-to- r(t) = In 1+6 j+ [tin In 3 k, 60-3 What is the standard parametrization for the tangent line? X y I N Tune overessions using tos the variable