Verify the first special case of the chain rule for the composition f in each of the cases_ (a) f(x, y) = xy, c(t) = (et, cos(t)) (Fo c)"(t) = (d) f(x, Y) = X exp(x2 _ y2) , c(t) = (t, ~t) (f0 c)(t) points MarsVectorCalc6 2.5.009_ Find T(3, 0)- where f(u, v) cos(u) sin(v) and T: RZ ~R2 is defined by T(s_ t) = (cos(t?s) , log(v 1 + 52)). 7(3, 0)