Evaluate each expression if a = 3 , b = 5 and c=1 b-c

Which equation can be simplified to find the inverse of y = 2x2?

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 best explains why this triangle is or is not a right triangle?