1. Evaluate the integral 2. Find the work

1. ( 10 points) Evaluate f 2ary + 42 - ads where C is the curve given by F(t) = 2 sin(t) 1+2 cos(t) j - 3t k, OstSa. 2. (10 points) Find the work done by the vector field F(x, y) = 4y it (x + 2y)3 in moving an object along the line segment C from P(-3, 2) to Q(1, 1)