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Statement 1: If A is an orthogonal matr...

Statement 1: If `A` is an orthogonal matrix of order 2, then `|A|=+-1.` Statement 2: Every two-rowed real orthogonal matrix is of any one of the forms `[[costheta ,-sintheta ],[sintheta ,costheta]]or[[costheta ,sintheta],[ sintheta,-costheta]]dot`

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