Suppose C is the curve r(t) = (6t,3to), for Osts 4, and F = (7x,5y) . Evaluate J F . Tds using the following steps. C ing the fo a. Convert the line integral J F . Tds to an ordinary integral. C b. Evaluate the integral in part (a). . . . a. Convert the line integral J F . T ds to an ordinary integral. C F . T ds = dt (Simplify your answers.) C 0