suppose that the orthogonal transformation x1 x2 p y1 y2 transforms f
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Suppose that the orthogonal transformation (x1/x2) = P (y1/y2) transforms f=x2/1-4x1x2+4x2/2 into f = 4y2/1 + 4y1y2 + y2/2. Fnd the orthogonal matrix P.