Question: Find the change of variable x = Py that transforms the quadratic form x T Ax into y T Dy as shown. 5x + 5x

Find the change of variable x = Py that transforms the quadratic form xTAx into yDy as shown.


5x + 5x + 3x3 + 10x1x2 + 4x1x3+4x2x3 = 11y+2y

5x + 5x + 3x3 + 10x1x2 + 4x1x3+4x2x3 = 11y+2y

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