• 试题 ID 14642


$A=\left(\begin{array}{ccc}1 & -1 & 3 \\ 0 & 0 & 1\end{array}\right), B=\left(\begin{array}{ll}2 & 0 \\ 0 & 1\end{array}\right)$, 则 $A^T B=$
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B
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答案:

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解析:

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