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[" If "A=[[2,-3],[-4,7]]" ,compute "A^(-...

[" If "A=[[2,-3],[-4,7]]" ,compute "A^(-1)" and "],[" show that "2A^(-1)=9I-A]

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Given =[(2,-3),(-4, 7)] , compute A^(-1) and show that 2A^(-1)=9I-A .

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