兰大22年4月《线性代数》22春平时作业2_100分
《线性代数》22春平时作业21.[单选题] <img id="ODhmqlkTEMP20190805121704290.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODhmqlkTEMP20190805121704290.png?Expires=1880295424&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=QJwuJMeDK%2B0M7xtp39bR2nalU24%3D" />
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A.A.1或2
B.B.-1或-2
C.C.1或-2
D.D.-1或2
答:——C——
2.[单选题] 设Ax=b是一非齐次线性方程组,η1,η2是其任意2个解,则下列结论错误的是( )
A.<img id="ODlhfhvTEMP20190805121727576.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODlhfhvTEMP20190805121727576.png?Expires=1880295447&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ji48D%2BdRDQL/pMluYWiw1N%2Bsgbs%3D" />
B.<img id="ODgzdraTEMP20190805121727730.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODgzdraTEMP20190805121727730.png?Expires=1880295447&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=m0tki1iPnrEesJ6%2BGbATrLE2GYw%3D" />
C.<img id="ODsnhgkTEMP20190805121727854.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODsnhgkTEMP20190805121727854.png?Expires=1880295447&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=8GIqZQyLO5t98DEAScQ9lh46FYQ%3D" />
D.<img id="ODjvcsdTEMP20190805121727999.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODjvcsdTEMP20190805121727999.png?Expires=1880295448&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=tedBu44byw9J8Utkh3m%2BbxGq%2BGY%3D" />
答:——A——
3.[单选题] <img id="ODhszxwTEMP20190805121606154.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODhszxwTEMP20190805121606154.png?Expires=1880295366&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=eZTqbudFa4c3tIg%2B9hlHVOQFn6E%3D" />
A.(A)
B.(B)
C.(C)
D.(D)
答:——B——
4.[单选题] <img id="ODmbeatTEMP20190805121600401.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODmbeatTEMP20190805121600401.png?Expires=1880295360&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=BWWtpP48X551Vu7ZeyHUbN6OTkE%3D" />
A.(A)
B.(B)
C.(C)
D.(D)
答:————
5.[单选题] 题面见图18<img height="252" width="627" alt="" src="http://file.open.com.cn/ItemDB/37509/921c25bc-dc13-4aab-bf82-b0754d9d7df6/200811412489642.jpg" />
A.A
B.B
C.C
D.D
答:————
6.[单选题] <img id="ODdbcjhTEMP20190805121610599.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODdbcjhTEMP20190805121610599.png?Expires=1880295370&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=TGHZqzhs%2BzcDpoigSHCM2TbWV5I%3D" />
A.(A)
B.(B)
C.(C) 东北大学无忧答案网整理
D.(D)
答:————
7.[单选题] <img id="ODoihkyTEMP20190805121609075.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODoihkyTEMP20190805121609075.png?Expires=1880295369&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=julBQtI8tBt3MhipcuCD0bWplbM%3D" />
A.(A)
B.(B)
C.(C)
D.(D)
答:————
8.[单选题] 设λ0是矩阵A的特征方程的3重根,A的属于λ0的线性无关的特征向量的个数为k,则必有( )
A.<img id="ODhrqfnTEMP20190805121657507.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODhrqfnTEMP20190805121657507.png?Expires=1880295417&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7v6M3n1a6IPzEkVqumRrNQ6MZ%2Bg%3D" />
B.<img id="ODrvxewTEMP20190805121657630.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODrvxewTEMP20190805121657630.png?Expires=1880295417&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Jf83WWdx8tTgddICxIZxYX5Rax0%3D" />
C.<img id="ODrhzhkTEMP20190805121657875.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODrhzhkTEMP20190805121657875.png?Expires=1880295418&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=cepvo0oJpmURgl3VvwP%2B3qTP1a0%3D" />
D.<img id="ODyaogkTEMP20190805121658008.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODyaogkTEMP20190805121658008.png?Expires=1880295418&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=zsmGcZYW5FXsocm122ERkUU5xU4%3D" />
答:————
9.[单选题] <img id="ODhtjhaTEMP20190805121724707.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODhtjhaTEMP20190805121724707.png?Expires=1880295444&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=%2BqhWIgI/Ruk3E47egEesO1REt6g%3D" />
A.A.-6
B.B.6
C.C.2
D.D.-2
答:————
10.[单选题] <img id="ODycoqvTEMP20190805121603608.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODycoqvTEMP20190805121603608.png?Expires=1880295363&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=YNFAPKVbJ5YgThdodj4gjpb9zio%3D" />
A.(A)
B.(B)
C.(C)
D.(D)
答:————
11.[单选题] 题面见图29
A.A
B.B
C.C
D.D
答:————
12.[单选题] <img id="ODuxlisTEMP20190805121613594.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODuxlisTEMP20190805121613594.png?Expires=1880295373&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=n2u3OwZN9hSF471HPK8BJB7hxhk%3D" />
A.(A)
B.(B)
C.(C)
D.(D)
答:————
13.[单选题] <img id="ODkqmvaTEMP20190805121620373.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODkqmvaTEMP20190805121620373.png?Expires=1880295380&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=oyNzh/W9T6IHG8cri5uFxMFemcc%3D" />
A.10
B.
C.14
D.
答:————
14.[单选题] 题面见图16<img height="113" width="640" alt="" src="http://file.open.com.cn/ItemDB/37509/9bb73e7e-c7be-47fc-bbe4-87aa68109044/2008114122239855.jpg" />
A.A
B.B
C.C
D.D
答:————
15.[单选题] <img id="ODgonzbTEMP20190805121617914.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODgonzbTEMP20190805121617914.png?Expires=1880295378&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=e6mD01o1hw/GEEWcV4T8j0o/sQY%3D" />
A.(A)
B.(B)
C.(C)
D.(D)
答:————
16.[单选题] 关于n个方程的n元齐次线性方程组的克拉默法则,下列说法正确的为( )
A.如果行列式不等于0,则方程组必有无穷多解
B.如果行列式不等于0,则方程组只有零解
C.如果行列式等于0,则方程组必有唯一的解
D.如果行列式等于0,则方程组必有零解
答:————
17.[判断题] 题面见图1-2<img height="36" width="629" alt="" src="http://file.open.com.cn/ItemDB/37509/04ebbdff-73c3-45e0-bdab-73b71adc04b6/2008114121821966.JPG" />
A.错误
B.正确
答:————
18.[判断题] 题面见图1-8<img height="98" width="749" alt="" src="http://file.open.com.cn/ItemDB/37509/547f01ad-400b-492b-8334-37b180df2267/2008114124433238.jpg" />
A.错误
B.正确
答:————
19.[判断题] 题面见图1-11<img height="62" width="739" alt="" src="http://file.open.com.cn/ItemDB/37509/da3ef21e-b309-4553-af1a-b8531911fb67/2008114124321222.jpg" />
A.错误
B.正确
答:————
20.[判断题] 题面见图1-9<img height="93" width="747" alt="" src="http://file.open.com.cn/ItemDB/37509/1cd1f5a7-1428-4bdf-9fcc-3c46b1359471/2008114124359800.jpg" />
A.错误
B.正确
答:————
21.[判断题] 题面见图1-2<img height="88" width="732" alt="" src="http://file.open.com.cn/ItemDB/37509/6652b8ba-89cb-4bec-a93b-9692ef4e63ae/2008114124646924.jpg" />
A.错误
B.正确
答:————
22.[判断题] 题面见图1-7<img height="38" width="575" alt="" src="http://file.open.com.cn/ItemDB/37509/9ded1a67-1ac4-439e-a7ab-9eb3ae096914/2008114124452316.jpg" />
A.错误
B.正确
答:————
23.[判断题] 题面见图1-4<img height="71" width="747" alt="" src="http://file.open.com.cn/ItemDB/37509/32355640-c739-46b1-8be7-2162528964ef/2008114124553675.jpg" />
A.错误
B.正确
答:————
24.[判断题] <img height="89" width="748" alt="" src="http://file.open.com.cn/ItemDB/37509/028c476f-3eaa-49e5-9f17-19fd90cd99f4/200811412185248.JPG" />题面见图1-3
A.错误
B.正确
答:————
25.[判断题] 题面见图1-10<img height="91" width="747" alt="" src="http://file.open.com.cn/ItemDB/37509/7a3919c2-cffe-4ae5-9797-df6c0b16e672/2008114124340207.jpg" />
A.错误
B.正确
答:————
26.[判断题] 题面见图1-4<img height="47" width="443" alt="" src="http://file.open.com.cn/ItemDB/37509/d79d9786-7b9f-4ce0-b39b-f98d2a992886/2008114121744763.JPG" />
A.错误
B.正确
答:————
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