Question: Show that is an orthogonal matrix. 6/7 -1/V5 _ 4/7V5 -15/7V5 2/7V5] 2/7 3/7 2/V5

Show that
6/7 -1/V5 _ 4/7V5 -15/7V5 2/7V5] 2/7 3/7 2/V5

is an orthogonal matrix.

6/7 -1/V5 _ 4/7V5 -15/7V5 2/7V5] 2/7 3/7 2/V5

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