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If A = [(1 2 0), (-2 -1 -2), (0 -1 1)], find A^-1

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If A = [(1  2  0), (-2  -1  -2), (0  -1  1)], find A-1

Using A–1, solve the system of linear equations x – 2y = 10 , 2x – y – z = 8 , –2y + z = 7.

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Given  that,

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