(Ⅰ)求满足Aξ2=ξ1,A2ξ3=ξ1的所有向量ξ2,ξ3; (Ⅱ)对(I)

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问题:


(Ⅰ)求满足Aξ21,A2ξ31的所有向量ξ2,ξ3
(Ⅱ)对(I)中的任意向量ξ2,ξ3,证明ξ1,ξ2,ξ3线性无关.

考点:普通考研考研数学(一)考研数学一
题型:问答题

阅读理解。

  I am Liu Mei. I am a girl. I am a middle school student. My cousin is the same age as me. She's really

nice, but she always borrows my things. Last week, she borrowed my math book and didn't return it. So

I couldn't do my homework. I don't want to have a fight with my cousin, because she's my best friend. I

don't know what to do.  

根据短文内容,判断正(T)误(F)。

( )1. Liu Mei is the same age as her cousin.

( )2. Her cousin never borrows Liu Mei's things.

( )3. Her cousin couldn't do her homework.

( )4. Her cousin borrowed Liu Mei's math book and returned it.

( )5. Liu Mei doesn't want to have a fight with her cousin because she's her best friend.

题型:问答题

根据《建设工程工程量清单计价规范》,土石方工程量计算规划规定,以( )计算。

A.设计图示净量
B.设计图示净量+操作工作面工程量
C.设计图示净量+放坡+操作工作面的工程量
D.设计图示净量+放坡工程量

题型:问答题

装配胎架应符合哪些要求?

题型:问答题

一个企业只能选择一家银行的一个营业机构开立一个基本存款账户,不得在多家银行机构开立基本存款账户。()

A.正确

B.错误

题型:问答题

下列哪一位患者可能存在知觉障碍

A.患者听力丧失,无法判断声音的性质
B.患者视力差,看不清目标
C.患者视力正常,不能识别形状或物品
D.患者听力正常,能够判断声音的性质
E.患者视力正常,能够识别形状或物品

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