Solution: Classify the quadratic forms in Exercise. Then
Chapter 7, Problem 10E(choose chapter or problem)
Classify the quadratic forms in Exercise. Then make a change of variable, x = Py, that transforms the quadratic form into one with no cross-product term. Write the new quadratic form. Construct P using the methods of Section 7.1.2x12 + 6x1x2 – 6x22
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