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- Apr 9th 2009, 02:25 AM #1

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## Need Help in this..1

Q1 - Find the critical points of the function f(x,y) = x^2 + 2y^2 - x^2y and then classify them into relative maxima, relative minima and saddle points.

Q2 - Let f(x,y) = xy - x - y + 3 and R is the triangular region with vertices (0, 0), (2, 0) and (0, 4). Find the interior and boundary points only at which the absolute extrema of f(x,y) can occur.

- Apr 9th 2009, 03:40 AM #2

- Apr 10th 2009, 12:57 AM #3

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