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Linear Algebra and Learning from Data

Exercise 1.5.4

Answers

Since $Q$ is orthogonal matrix, we have $Q^{T} Q = I$ .

${(Qx)}^{T} (Qy) = x^{T} Q^{T} Qy = x^{T} y$ .

niuers

2020-03-20 00:00

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