【判断题】【消耗次数：1】
非齐次线性方程组Ax=b有解的充要条件是其系数矩阵的秩于增广矩阵的秩相等
①
正确
②
错误
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相关题目
【单选题】
设A是mn?矩阵,Ax?0是非齐次线性方程组Ax?b所对应的齐次线性方程组,则 下列结论正确的是（ ）
①
若 Ax?0仅有零解,则Ax?b有唯一解.
②
若Ax?0有非零解,则Ax?b有无穷多个解.
③
若 Ax?b有无穷多个解,则Ax?0仅有零解.
④
若Ax?b有无穷多个解,则Ax?0有非零解
【单选题】
设A是m*n阶矩阵，Ax=0是非齐次线性方程组Ax=b所对应的齐次线性方程组，则下列结论正确的是（）
①
若Ax=0仅有零解，则Ax=b有唯一解
②
若Ax=0有非零解，则Ax=b有无穷多个解
③
若Ax=b有无穷多个解，则Ax=0仅有零解
④
若Ax=b有无穷多个解，则Ax=0有非零解
【单选题】
设 A为mn?矩阵,齐次线性方程组Ax?0仅有零解的充分条件是（ ）
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A的列向量线性无关
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A的列向量线性相关
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A的行向量线性无关.
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A的行向量线性相关.
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