(adsbygoogle = window.adsbygoogle || []).push({}); 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>?

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# Determine gradient of a function f(x,y)

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