Can you please help me On question nine

Apine tree that is 140 feet tall is added to the sample. how will this outlier affect the shape of the box plot?

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).

Evaluate cos2θ for cosθ = square root of 3/2