Can somebody help me out please ??

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).

Find the values of the variables in the kite

Angles 1 and 2 are complimentary angles. angle 1 = 52 degrees. what is the measure of angle 2?