# Properties of Determinants : Orthogonal Matrix and Parallelepiped

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If Q is an orthogonal matrix, so that QTQ = I, prove that det Q equals +1 or -1. What kind of parallelepiped is formed from the rows (or columns) of an orthogonal matrix Q?

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##### Solution Summary

Determinants of an orthogonal matrix are investigated and discussed. The solution is detailed and well presented.

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