(Solved): If f(x, y, z) = xy z + ln (xy z) then Select one: 3xyz + xy z None of these 2 y 2xy ...

If f(x, y, z) = xy² z³ + ln (xy² z³) then Select one: 3xy²z² + xy² z³ None of these 2 y 2xyz³+ 3xy²z² + 3 Z 1 y²z³ + X Clear my choice af ?z is: Let f(x, y) = af ?? xy x²+y (1,1)= 0. Select one: O True False then Let w = ?2zx² + 2zy² + 1 with x = cost, y = sin t, z = 2t, then dw = 2 at t = 0. dt Select one: O True False Let z = f(x, y) = and y = 14, then = 1 at t = 2, s = 1. Select one: 1 ?xy True False with x = 1 541 If f(x, y) = xy ln (x²y²) then Select one: 2y X O 2x y 4 + In (x²y²) O In (x²y²) None of these 2² f ??? is; If f(x, y) = a² f ??? (1, 1) = - 1/1/ Select one: xy x²+x² True False then