1. The problem statement, all variables and given/known data View the curve below as a contour of f(x,y). (y-x)^2 + 2 = xy - 3 Use gradf (2,3) to find a vector normal to the curve at (2,3). 2. Relevant equations 3. The attempt at a solution I am not sure how do I get the vector normal to the curve, is it using a cross product>?