# Extrema and saddle points

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Examine each function for relative extrema and saddle points:

f (x,y) = x^2 - 3xy + y^2

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##### Solution Summary

This provides an example of finding relative extrema and saddle points.

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We are given f(x, y) = x^2 - 3xy + y^2.

We calculate

f_x = 2x - 3y

f_y = -3x + 2y

so the ...

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