(Sec 9.2 ) Find the partial derivatives: fx, fy, fax, fay, fux, fyy (a) f(x, y) = x2In (x2y3) (b) f(2, y) = y2 In (x2y3) (c) f(x, y) = (22 + 2) In (x2 + 1) (d) f(x, y) = 4xe3x2+2y (e) f(x, y) = 4xe3x-242 ( f) f ( x, y) = -2- = 25 64 ty +- +15; x # 0,y+0 (g) f(x, y) = 125x595; x70,y+0