Question: Q2.4 Given x 2 Rn, z 2 Rm, and A 2 Rmn (m < n), a. prove that z|Ax = tr ???? x z|A

Q2.4 Given x 2 Rn, z 2 Rm, and A 2 Rmn (m < n),

a. prove that z|Ax = tr

????

x z|A



,

b. compute the derivative ¹@@xº kz ???? Axk2, and

c. compute the derivative ¹@@Aº kz ???? Axk2.

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