Question

Condition in which transpose of matrix is the inverse

Answer 1

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Gd mrng....

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If A−1=AT, then ATA=I.

This means that each column has unit length and is perpendicular to every other column. That means it is an orthonormal matrix.

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Answer 2

Here is your answer÷

If A−1=AT, then ATA=I.

This means that each column has unit length and is perpendicular to every other column. That means it is an orthonormal matrix.

Hope this helps you