Uwu <3 :3 have a nice day

Find the gradient of f(x,y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2−1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(−2,1,−2).

Is the power produced directly proportional to the wind speed, give reasons for your answer?

For the feasibility region shown below find the maximum value of the function p=3x+2y