10.2 Parametric Equations & Polar Coordinates
Calculus With Parametric Curves: Overview
If parametric equations and are differentiable, then to find the tangent line at a point on the
parametric curve whereis also differentiable function of , the chain rule gives:
Then, rearranging: , given that . This helps find the slowithout having to
eliminate the parameter .
To determine the area under the curve for where curve is d