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Linear Algebra
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OpenStudy (anonymous):
you are given the following quadratic function. 3x^2 -6x+6xz +y^2 -4yz+8z^2 a) find the matrix associated with the extremum (minimum, maximum or saddle point). b) determine the definiteness (positive-, semi- or negative-) of the matrix. c) find the location of the extremum. what kind of point is this?
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