\"\"

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The matrix is \"\".

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Definition of inverse matrix :

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If \"\" is an \"\" then \"\", where \"\".

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Here \"\"

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\"\"

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\"\".

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Because \"\", then \"\" is invertiable.

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Inverse of a \"\" matrix :  \"\".

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\"\"

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The inverse matrix is \"\".

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\"\"

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The inverse matrix is \"\".