Восьмой и двадцать первый, возможна оплата.

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 multiplicative inverse of 8-12i

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents