jackiehutchinso2628 jackiehutchinso2628 25-04-2018 Mathematics contestada Evaluate c (y + 6 sin(x)) dx + (z2 + 4 cos(y)) dy + x3 dz where c is the curve r(t) = sin(t), cos(t), sin(2t) , 0 ≤ t ≤ 2π. (hint: observe that c lies on the surface z = 2xy.) c f · dr =