In each part, classify the quadratic form as positive definite, positive semidefinite, negative definite, negative semidefinite, or
Question:
(a) x21 + x22
(b) (x1 - x2)2
(c) x21 - x22
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a Since x 1 2 x 2 2 0 unless x 1 x 2 0 the form is positive definite b ...View the full answer
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Related Book For 
Elementary Linear Algebra with Applications
ISBN: 978-0471669593
9th edition
Authors: Howard Anton, Chris Rorres
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