Find the directional derivative of the function (&g = ln(m4 -+ y4) at the point (1, 2) in the direction of the vector (1, 2) | Vi % Question Help: &3 Message instructor Post to forum @ Question 2 5 0/1pt O5 1 @ Details Find the directional derivative of f(z,y) = \\/633 + 3y at the point (2, 5) in the direction = %T radians. Question Help: [ Message instructor (O Post to forum @ Question 3 Zo/1pt 5 21 @O Details Find the directional derivative of the function f(x,y) = e % at the point (0, 0) in the direction of the vector (3, 2). You may enter your answer as an expression or as a decimal with 4 significant figures. Question Help: [ Message instructor (O Post to forum @ Question 4 Zo/1pt O5 1 O Details The directional derivative of f(z,y) = 1/2x 4 4y at the point (9, 4) in the direction corresponding to 6 = ?W is