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Introductory Econometrics 4th Edition by Jeffrey Wooldridge
Edition 4ISBN: 978-0324660609Introductory Econometrics 4th Edition by Jeffrey Wooldridge
Edition 4ISBN: 978-0324660609 Exercise 6
Show that if A is an n x n symmetric, positive definite matrix, then A must have strictly positive diagonal elements.
(ii) Write down a 2 x 2 symmetric matrix with strictly positive diagonal elements that is not positive definite.
(ii) Write down a 2 x 2 symmetric matrix with strictly positive diagonal elements that is not positive definite.
Explanation
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A positive definite matrix should have t...
Introductory Econometrics 4th Edition by Jeffrey Wooldridge
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