(a) Set up the line integral for evaluating SF.dr. where = (y cos(x) - rysin(x), zy + x cos(x)) and C is the triangle from (0,0) to (0.8) to (4,0) to (0,0) directly; that is, using the formula S. dr = MĒ (Ft)). F'(t)dt. Does it seem reasonable to compute this line integral directly? Why or why not? (b) Is there an easier way to compute this line integral? Why or why not? (c) Evaluate the line integral by the method of your choice.