【判断题】【消耗次数:1】
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
正确
错误
参考答案:
复制
纠错
相关题目
【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】 设向量组可由向量组线性表示,则()
①  当时,必线性相关
②  当时,必线性相关
③  当时,必线性相关
④  当时,必线性相关
【判断题】 含有m个向量的向量组线性无关的充要条件是其秩为m
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】 若向量组(A)可由向量组(B)线性表示,则R(A)不小于R(B)
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
【判断题】 向量组<img class=jc-formula data-tex={ \alpha }_{ 1 },{ \alpha }_{ 2 },\cdots { \alpha }_{ m }\quad \quad (m2) src=https://huaweicloudobs.ahjxjy.cn/CD495C2A9A31979FBC05A1D9DA3E23BB.png style=vertical-align: middle;/>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
【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
【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
随机题目
【单选题】 It has been proposed that we ____ our decision until the next meeting.
①  delayed
②  delay
③  can delay
④  are to delay
【单选题】 By the middle of the 21st century, the vast majority of the world’s population ____ in cities rather than in the country.
①  are living
②  will be living
③  have lived
④  will have lived
【单选题】 Mary tiptoed over and took the clock away because she hated to hear it ____ when she was trying to go to sleep.
①  sounding
②  ringing
③  ticking
④  humming
【单选题】 Under this ____ pressure some of the rocks even became liquid.
①  intensive
②  weighty
③  intense
④  bulky
【单选题】 The patient was fully ____ during the operation.
①  liberal
②  sensible
③  aware
④  conscious
【单选题】 He might have been killed ____ the timely arrival of the ambulance.
①  but for
②  except for
③  besides
④  except
【单选题】 You must be careful when ___ on the highway.
①  you driving
②  are driving
③  driving
④  you were driving
【单选题】 — We have to stop talking here. Listen, _____! —Hurry up, or we’ ll be late.
①  There goes the bell
②  There does the bell go
③  There the bell goes
④  Goes the bell there
【单选题】 Even if his letter ____ tomorrow, it ____ too late to do anything.
①  will arrive...is
②  should arrive...were
③  arrives...will be
④  arrives...would be
【单选题】 — The water changes into thick ice covering rivers and lakes in winter in Harbin. —_____ in Urumqi and children go skating on it then.
①  So is it
②  So it does
③  So it is
④  So does it