Question: Classify each of the quadratic forms in Exercises 1-3 as positive definite, positive semidefinite, negative definite, negative semidefinite, or indefinite. 1. 2. 3. - 2x2

Classify each of the quadratic forms in Exercises 1-3 as positive definite, positive semidefinite, negative definite, negative semidefinite, or indefinite.
1.

3. - 2x2 - 2y2 + 2xy

xi 2x2

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