Evaluate the line integral C Vo dr for the following function & and oriented curve C (a) using a parametric description of C and evaluating the integral directly, and (b) using the Fundamental Theorem for line integrals. x + y+z Q(x,y,z) = 2 C: r(t) = (cost, sint, 2 4 7 for sts 4 Using either method, Vodr= (Type an exact answer.)