Solve

2. Find the first order partial derivative fx, fy and fz for each of the following: a) f(x, y, z) = exyz b) f (x, y, z) = y+ vx2 -z c) f ( x, y, z) = (xz + y)2 d) f(x, y, z) = In(x - 2yz) e) f(x, y, z) = cos (x + yz +2z)