Question: Let L:mathbb{R}^{2 times 2}to mathbb{R} defined by L(A) = m{trace}(A). If A= begin{bmatrix} 1 & 4 7 & 5 end{bmatrix}, what is L(A)
Let L:\mathbb{R}^{2 \times 2}\to \mathbb{R} defined by L(A) = m{trace}(A). If A= \begin{bmatrix} 1 & 4 \\ 7 & 5 \end{bmatrix}, what is L(A)
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