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I have no more points to ask questions on here and I need help with a few more questions kinda desperate :(

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).

Plzzz i beg u so much asaaaap ! what is the slope of this line? enter your answer in the box.

Describe the domain and range of y=2(3)^x-2+5