A的逆的第一行元素为，，，第二行元素为，，，第三行元素为，， - 查题网

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河南成教 / 代数选讲

A的逆的第一行元素为，，，第二行元素为，，，第三行元素为，， .

X的第一行元素为，，第二行元素为，，第三行元素为， .

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代数选讲

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