Symmetric Matrices and Quadratic Forms

The Spectral Theorem, quadratic forms, and positive definite matrices.0/9 mastered

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Let

\mathbf{q}=\tfrac{1}{\sqrt2}\langle 1,1\rangle

and

P=\mathbf{q}\mathbf{q}^T

. Find the entry

P_{12}

Your answer

#5456