A few days ago
un k

Continuum mechanics?

Let A be any orthogonal matrix, i.e., AAT = AA–1 = I, where I is the identity matrix. Thus,

show that det A = ±1.

Top 1 Answers
A few days ago
norcekri

Favorite Answer

Well, what do you know about the determinant of a matrix product? How about the determinant of an inverse? Use those properties, and express AA-1 = I as a determinant product.

That should get you to the solution.

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