In Exercises 13–20, find an invertible matrix P and a matrix C of the form
15.
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- Find the determinants in Exercises 5–10 by row reduction to echelon form. just number 7arrow_forwardClassify the quadratic forms in Exercises 9–18. 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. 11. 2x² + 10x1x2 + 2x3arrow_forwardshow all the workarrow_forward
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