Show three different ways to compose a sum if 1. use two fractions that have 8 as a denominator. explain your answer.

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).

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

Ineed no it anyone can see this