1} Calculate the derivative of I (my) _ m 51:1[33- 3y] at the point [x.y}=[3.-3] in the direction which makes an angle B=2rd3 with respect to the x axis. Ith (3. 3} 'U. Give the value to two decimal places. 2) Calculate the derivative of the function y+2z } f {magma} I: arclau[ at point (x.y,z]=[-3.-3,1) in the direction of the vector ?_(2.1.1}. I'; (3. 4.1) L Give the value to two decimal places