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Exercises 23 and 24 show how to classify a quadratic form Q(x) = xTAx, when
24. Verify the following statements.
- a. Q is positive definite if det A > 0 and a > 0.
- b. Q is negative definite if det A > 0 and a < 0.
- c. Q is indefinite if det A < 0.
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Chapter 7 Solutions
Linear Algebra and Its Applications (5th Edition)
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