The elevation of the surface of the dead sea is -424.3 meters. in 2005 the height of mountain everest was 8,844.43 meters how much higher was the summit of mountain everest?

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).

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

4+(2+x) can you me solve this problem