Please help me I am hopelessly lost and don't even know where to start! I guess they're right when they said girls suck at math!!! It's not fair!(adsbygoogle = window.adsbygoogle || []).push({});

Let A be an nxn matrix with only real eigenvalues. Prove that there is an orthogonal matrix Q such that (Q^T)AQ is upper triangular with eigenvalues along the main diagonal.

Any of you boys out there help me solve this?

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# Matrix with only real eigenvalues

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