共50条信息
若矩阵\(\begin{pmatrix}{a}_{11} & {a}_{12} \\ {a}_{21} & {a}_{22}\end{pmatrix} \)满足:\({a}_{11},{a}_{12},{a}_{21},{a}_{22}∈\left\{0,1\right\} \),且\(\begin{vmatrix}{a}_{11} & {a}_{12} \\ {a}_{21} & {a}_{22}\end{vmatrix}=0 \),则这样的互不相等的矩阵共有\((\) \()\)
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