【判断题】【消耗次数:1】
含有m个向量的向量组线性无关的充要条件是其秩为m
正确
错误
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相关题目
【判断题】 由至少两个向量组成的向量组线性无关的充要条件是其中存在一个向量不可由其余向量线性表示
①  正确
②  错误
【判断题】 向量组线性相关的充要条件是该向量组中至少有一个向量可由其余向量线性表示。
①  正确
②  错误
【单选题】 三个向量共面的充要条件为
①  数量积为0
②  向量积为0
③  混合积为0
④  双重向量积为0
【判断题】 n阶矩阵A能对角化的充要条件是A有n个线性无关特征向量.
①  正确
②  错误
【判断题】 若向量组中部分向量线性无关,则此向量组线性无关。
①  正确
②  错误
【判断题】 如果向量组Ⅰ可以由向量组Ⅱ线性表示,则Ⅰ的秩大于Ⅱ的秩.
①  正确
②  错误
【单选题】 在下列所指明的各向量组中,( )中的向量组是线性无关的.
①  向量组中含有零向量
②  任何一个向量都不能被其余的向量线性表出
③  存在一个向量可以被其余的向量线性表出
④  向量组的向量个数大于向量的维数
【单选题】 线性无关的向量组,则其部分组[填空].
①  必线性相关
②  必线性无关
③  可能线性相关,也可能线性无关
【单选题】 向量组a1,a2,...,an线性无关的充分条件是
①  a1,a2,...,an均不为零向量.
②  a1,a2,...,an任意两个向量的分量不成比例.
③  a1,a2,...,an中任意一个向量均不能由其余1s?个向量线性表示.
④  a1,a2,...,an中有一部分向量线性无
【单选题】 设A是m*n阶矩阵,齐次线性方程组Ax=0仅有零解的充要条件是()
①  A的列向量线性无关
②  A的列向量线性相关
③  A的行向量线性无关
④  A的行向量线性相关
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【单选题】 I am going away. or not she will go is up to her to decide.
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①  To get
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①  while
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①  that
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