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A=19[−1848−1444−7]A=\frac{1}{9}\begin{bmatrix}-1 & 8 &4\\8 & -1 & 4\\4 & 4 & -7\end{bmatrix}A=91⎣⎡−1848−1444−7⎦⎤
What kind of a transformation of R3\mathbb{R}^3R3 does AAA represent?
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