PLEASE ANSWER
Which equation has an a-value of 1, a b-value of - 3 , and a c-value of -5?

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).

Which two undefined geometric terms always describe figures with no beginning or end?

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer