Maharashtra State BoardHSC Commerce 12th Board Exam
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If A = [12-52-34-549], prove that AT = A. - Mathematics and Statistics

Sum

If A = `[(1, 2, -5),(2, -3, 4),(-5, 4, 9)]`, prove that AT = A.

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Solution

A = `[(1, 2, -5),(2, -3, 4),(-5, 4, 9)]`

∴ AT = `[(1, 2, -5),(2, -3, 4),(-5, 4, 9)]`
=A.

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