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Question
If A = `[(5, 1, -4),(3, 2, 0)]`, find (AT)T.
Solution
A = `[(5, 1, -4),(3, 2, 0)]`
∴ AT = `[(5, 3),(1, 2),(-4, 0)]`
∴ (AT)T = `[(5, 1, -4),(3, 2, 0)]` = A.
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