(1 point) Curves C₁ and C2 are parametrized as follows: C₁ is (x(t), y(t)) = (0,t) for 1≤t≤1 - and C2 is (x(t), y(t)) = (cost, sint) for л/2≤t≤3л/2. Sketch, on a separate sheet of paper, the curves C₁ and C₂ with arrows showing their orientation. Next, suppose that F = (5x+6y) i + 7y j. Calculate fc. F. dr, where C is the curve given by C = C₁ + C2. Sc F. dr =