奥特曼 发表于 2020-11-10 14:35:10

兰大《线性代数》2020年11月在线考核试题百分

《线性代数》2020年11月考试在线考核试题
1.[单选题] <img id="ODjeijfTEMP20190805121600278.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODjeijfTEMP20190805121600278.png?Expires=1880295360&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=5sZLYYqIhOCagTMFkOwck%2BbUO%2Bw%3D" />
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    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:——D——
2.[单选题] <img id="ODomxviTEMP20190805121615167.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODomxviTEMP20190805121615167.png?Expires=1880295375&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=zn6/1lq2oEi4PkDdWru168X15f0%3D" />
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:——C——
3.[单选题] <img id="ODsqqdwTEMP20190805121604160.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODsqqdwTEMP20190805121604160.png?Expires=1880295364&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=j1YP8vYD4duf9aAp/zlnKcAIeUk%3D" />
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:——A——
4.[单选题] <img id="ODbdsweTEMP20190805121622869.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODbdsweTEMP20190805121622869.png?Expires=1880295383&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=B3GsDi%2BJR%2BKL/yfRXZ7ns0M63Ck%3D" />
    A.12
    B.24
    C.36
    D.48
    答:————
5.[单选题] <img id="ODweqjnTEMP20190805121635813.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODweqjnTEMP20190805121635813.png?Expires=1880295395&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=VRcZ5CQfvxkk9k5xcLhmqhm/gSA%3D" />
    A.0
    B.2
    C.3
    D.24
    答:————
6.[单选题] <img id="ODnlrgsTEMP20190805121610272.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODnlrgsTEMP20190805121610272.png?Expires=1880295370&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=IFl64kYJUTiAyuzxEsrESiyNwwY%3D" />
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
7.[单选题] 若A为3阶方阵且| A-1 |=2,则| 2A |=( )
    A.<img id="ODiuvdrTEMP20190805121716343.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODiuvdrTEMP20190805121716343.png?Expires=1880295436&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Jebzr3OdPdTTQXbGcPTIL/NkL84%3D" />
    B.2
    C.4
    D.8    更多答案进 ap5u.com 答案qw761296021
    答:————
8.[单选题] <img id="ODrxnkxTEMP20190805121609928.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODrxnkxTEMP20190805121609928.png?Expires=1880295370&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=YJq%2Bw0w1YG2QyfCECk6zlv%2B7XzI%3D" />
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
9.[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:————
10.[单选题] <img id="ODvdxcxTEMP20190805121603319.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODvdxcxTEMP20190805121603319.png?Expires=1880295363&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=TNchB4FZn3ZJt%2BjIcckU%2BKgPd7Q%3D" />
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
11.[单选题] <img id="ODugtnrTEMP20190805121613804.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODugtnrTEMP20190805121613804.png?Expires=1880295373&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=nYQCCgsKSGF0CdmapP8uvdApxbk%3D" />
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
12.[单选题] <img id="ODtyvbfTEMP20190805121606438.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODtyvbfTEMP20190805121606438.png?Expires=1880295366&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ieujGbA5A25w1jXew7983AcKtBA%3D" />
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
13.[单选题] <img id="ODlhyawTEMP20190805121602925.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODlhyawTEMP20190805121602925.png?Expires=1880295363&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=%2BK5v7IRkssLo39T8C7RIsI8/Orw%3D" />
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
14.[单选题] <img id="ODcnhhqTEMP20190805121602173.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODcnhhqTEMP20190805121602173.png?Expires=1880295362&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=SJhGxpncamkZC9QBdZbY3oP%2Beyg%3D" />
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
15.[单选题] 设n阶方阵A不可逆,则必有( )
    A.<img id="ODttgevTEMP20190805121636397.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODttgevTEMP20190805121636397.png?Expires=1880295396&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=X5w6EJO74f0g0%2BIvIX35DHOj3Iw%3D" />
    B.<img id="ODwjyhrTEMP20190805121636533.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODwjyhrTEMP20190805121636533.png?Expires=1880295396&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=MU82a5mDaxr6rcIuGwcfSiMSVo8%3D" />
    C.<img id="ODoeigpTEMP20190805121636683.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODoeigpTEMP20190805121636683.png?Expires=1880295396&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=3UeXcb7e95xUl1z1B8z4QcWIFIw%3D" />
    D.方程组Ax=0只有零解
    答:————
16.<ShortAnswer> <img id="ODnezpoTEMP20190805121535894.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODnezpoTEMP20190805121535894.png?Expires=1880295336&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=/5e3MIOwCiKEu2benQikTP3xtsU%3D" />
    答:————
17.<ShortAnswer> <img id="ODzovvuTEMP20190805121543292.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODzovvuTEMP20190805121543292.png?Expires=1880295343&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=hAKEk/w6odleCIglpqF4v46hpOQ%3D" />
    答:————
18.<ShortAnswer> <img id="ODdkyedTEMP20190805121642574.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0805/ODdkyedTEMP20190805121642574.png?Expires=1880295402&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=XmB/DikM2IwBxW74b6tF0zs8/EA%3D" />
    答:————
19.<ShortAnswer> 根据线性代数所学的内容,请简要叙述两种求n阶行列式的方法。
    答:————

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