【判断题】【消耗次数:1】
单位变换和数乘变换都是线性变换
正确
错误
参考答案:
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相关题目
【判断题】 零变换和单位变换都是数乘变换。( )
①  正确
②  错误
【判断题】 线性变换的秩和线性变换的零度之和等于线性空间的维数。
①  正确
②  错误
【判断题】 线性变换的值域和核都是不变子空间。
①  正确
②  错误
【判断题】 零变换不是数乘变换。
①  正确
②  错误
【判断题】 线性变换的特征值一定是线性变换的矩阵的特征多项式的一个根。
①  正确
②  错误
【判断题】 线性变换的特征向量可以是零向量。
①  正确
②  错误
【判断题】 线性变换保持向量组的线性相关性。
①  正确
②  错误
【判断题】 可逆线性变换保持向量组的线性相关性。
①  正确
②  错误
【判断题】 矩阵的初等行(列)变换是指对一个矩阵施行以下三种变换:对换变换,数乘变换,倍加变换
①  正确
②  错误
【判断题】 线性变换的属于特征根的特征向量只有有限个。( )
①  正确
②  错误
随机题目
【单选题】 I caught a___ of the car before it disappeared around the bend.
①  glance
②  glimpse
③  glare
④  stare
【单选题】 Alice ___her father that both she and her husband would be happy if he would live with them.
①  convinced
②  reinforced
③  pledged
④  required
【单选题】 Never in my wildest dreams ___ these people are living in such poor conditions.
①  I could imagine
②  ?could I imagine
③  ?I couldn’t imagine
④  ?couldn’t I imagine
【单选题】 It was ___ back home after the experiments.
①  not until midnight did he go
②  until midnight that he didn’t go
③  not until midnight that he went
④  until midnight when he didn’t go
【判断题】 Mark often attempts to excape to be fined whenever he breaks traffic regulations.
①  正确
②  错误
【单选题】 The patients believe that the doctor knows exactly how to put them ___.
①  right
②  correct
③  perfect
④  well
【判断题】 It was because he was too clumsy to drive a car that Jim hadnt learned to drive.
①  正确
②  错误
【单选题】 Half of the workers here ___ under 30 ___.
①  is/years
②  are/year old
③  is/years old
④  are/years of age
【单选题】 Thirty dollars ___ too expensive.
①  are
②  is
③  were
④  be
【单选题】 Nothing but one desk and six chairs ___ in the room.
①  are
②  is stayed
③  is
④  are left