Prove that if Q is an orthogonal matrix, the det(Q)=(+-)1.

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- November 6th 2010, 06:35 AMalice8675309orthogonal matrix
Prove that if Q is an orthogonal matrix, the det(Q)=(+-)1.

- November 6th 2010, 06:37 AMAckbeet
What ideas have you had so far?

- November 6th 2010, 07:12 AMalice8675309
- November 6th 2010, 09:08 AMAckbeet
Perfect. You don't need to add any more - I think you're done.