Question
Find an equation of the tangent plane to the surface at the given point.$$g(x, y)=x^{2}+y^{2}, \quad(1,-1,2)$$
Step 1
The partial derivative of $g$ with respect to $x$ is $g_x = 2x$ and the partial derivative of $g$ with respect to $y$ is $g_y = 2y$. Show more…
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