HELP PLS HELP RIGHT NOW AND PLS DONT JUST PUT A WERID ANSWER I WILL GIVE YOU BRAINLIEST BUT PLS WHAT IS THIS ANSWER!!!

Which equation represents the partial sum of the geometric series?

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).

Write the equation in logarithmic form m^x=n