【单选题】【消耗次数：1】
下列向量组中线性无关的是
①
<img class=jc-formula data-tex={ (1，2) }^{ T }\quad src=https://huaweicloudobs.ahjxjy.cn/788315251CC69FD131EF3030B2803106.png style=vertical-align: middle;/>，<img class=jc-formula data-tex={ (2，4) }^{ T } src=https://huaweicloudobs.ahjxjy.cn/00FCDFD7C1FDA7B4505BEA5DAFF8B632.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex={ (3，5) }^{ T } src=https://huaweicloudobs.ahjxjy.cn/A63B6E0C58025CB95A7DC85FF131C1C4.png style=vertical-align: middle;/>,<img class=jc-formula data-tex={ (-3，-5) }^{ T } src=https://huaweicloudobs.ahjxjy.cn/40589702949CC3F4A3BB7724BE307EA6.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex={ (5，3) }^{ T } src=https://huaweicloudobs.ahjxjy.cn/744E8F0C8219D38FD0D65D26065094EB.png style=vertical-align: middle;/>,<img class=jc-formula data-tex={ (-10，-6) }^{ T } src=https://huaweicloudobs.ahjxjy.cn/1A0412EF39EFD7874C11BE9EBDFA4C2F.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex={ (1，2) }^{ T } src=https://huaweicloudobs.ahjxjy.cn/5803E8F1FC84E740C7627C8BDEDD9BC3.png style=vertical-align: middle;/>,<img class=jc-formula data-tex={ (2，1) }^{ T } src=https://huaweicloudobs.ahjxjy.cn/1F6282D206C75ACB1CB2680677124A6C.png style=vertical-align: middle;/>
参考答案：
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相关题目
【单选题】
公式“(p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge />q) <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee /> (<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee />r)”的主合取范式为:
①
M0.
②
M4
③
M6
④
M0<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge />M4<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge />M6.
【单选题】
令前提: <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/117E6A630A0200497B87D15B90307923.png data-tex=\exists />xF(x)<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/F388E7EE9892B38FECEEB653227F230A.png data-tex=\mapsto /> <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/151E88A53D653382F547CC2EA5D9CEBC.png data-tex=\forall />y((F(y)<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee /> G(y))<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/F388E7EE9892B38FECEEB653227F230A.png data-tex=\mapsto /> R(y)), <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/117E6A630A0200497B87D15B90307923.png data-tex=\exists />xF(x)，则下面不是其有效结论的是：
①
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/117E6A630A0200497B87D15B90307923.png data-tex=\exists />xR(x)
②
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/151E88A53D653382F547CC2EA5D9CEBC.png data-tex=\forall />y((F(y) <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee /> G(y))<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/F388E7EE9892B38FECEEB653227F230A.png data-tex=\mapsto /> R(y))
③
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/117E6A630A0200497B87D15B90307923.png data-tex=\exists />x(F(x)<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee /> G(x))
④
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/151E88A53D653382F547CC2EA5D9CEBC.png data-tex=\forall />x(F(x)<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee /> G(x))
【单选题】
设<img class=jc-formula data-tex=\xi \~ N(\mu ,{ \sigma }^{ 2 }) src=https://huaweicloudobs.ahjxjy.cn/2147D5A5BB1BD04932F9A62490D99E10.png style=vertical-align: middle;/>，其中<img class=jc-formula data-tex=\mu \quad src=https://huaweicloudobs.ahjxjy.cn/72143C62DAAAA39AB69A5506838561CA.png style=vertical-align: middle;/>已知，<img class=jc-formula data-tex={ \sigma }^{ 2 } src=https://huaweicloudobs.ahjxjy.cn/0CF3AA226894411774EF0AB7244924B1.png style=vertical-align: middle;/>未知，<img class=jc-formula data-tex={ X }_{ 1 },{ X }_{ 2 },{ X }_{ 3 } src=https://huaweicloudobs.ahjxjy.cn/4FF77F2383FA30F4DFAC4C0C4AF2E219.png style=vertical-align: middle;/>为其样本，下列各项不是 统计量的是
①
<img class=jc-formula data-tex=\frac { 1 }{ { \sigma }^{ 2 } } ({ X }_{ 1 }^{ 2 }+{ X }_{ 2 }^{ 2 }+{ X }_{ 3 }^{ 2 }) src=https://huaweicloudobs.ahjxjy.cn/BF31734B07ABA2B89563EB8446340FDB.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex={ X }_{ 1 }+3\mu \quad src=https://huaweicloudobs.ahjxjy.cn/5192835F8320C3E0CCC7F57B09D42755.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=max({ X }_{ 1 }{ ,X }_{ 2 },{ X }_{ 3 }) src=https://huaweicloudobs.ahjxjy.cn/920DB46E711859C1EF3DA8FA1D37AB7D.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex=\frac { 1 }{ 3 } ({ X }_{ 1 }+{ X }_{ 2 }+{ X }_{ 3 })\quad src=https://huaweicloudobs.ahjxjy.cn/BEACA87C54812DAB7578055979EAA505.png style=vertical-align: middle;/>
【单选题】
公式“(<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/F388E7EE9892B38FECEEB653227F230A.png data-tex=\mapsto />q)<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/F388E7EE9892B38FECEEB653227F230A.png data-tex=\mapsto /> (<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />q<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee />p)”的主析取范式为:
①
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/9ABE9036703B48C5242D684BFF1D0CB2.png data-tex=\Sigma />(0, 2, 3).
②
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/9ABE9036703B48C5242D684BFF1D0CB2.png data-tex=\Sigma />(0, 1, 2).
③
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/9ABE9036703B48C5242D684BFF1D0CB2.png data-tex=\Sigma />(0, 1, 3).
④
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/9ABE9036703B48C5242D684BFF1D0CB2.png data-tex=\Sigma />(1, 2, 3).
【单选题】
令前提: <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/151E88A53D653382F547CC2EA5D9CEBC.png data-tex=\forall />x(F(x) <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee />G(x)), <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg /><img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/117E6A630A0200497B87D15B90307923.png data-tex=\exists />xG(x)，则下面不是其有效结论的是：
①
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/117E6A630A0200497B87D15B90307923.png data-tex=\exists />xF(x)
②
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/117E6A630A0200497B87D15B90307923.png data-tex=\exists />x<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg /> G(x)
③
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/151E88A53D653382F547CC2EA5D9CEBC.png data-tex=\forall />xF(x)
④
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/117E6A630A0200497B87D15B90307923.png data-tex=\exists />x(F(x)<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee /> G(x))
【单选题】
设<img class=jc-formula data-tex={ X }_{ 1 },\cdots ,{ X }_{ n } src=https://huaweicloudobs.ahjxjy.cn/8159F7186DE77C735294288BB1F8C1F1.png style=vertical-align: middle;/>是来自总体<img class=jc-formula data-tex=X src=https://huaweicloudobs.ahjxjy.cn/18E2773B1E2835B209E7E51B85285E80.png style=vertical-align: middle;/>的样本，且<img class=jc-formula data-tex=EX=\mu src=https://huaweicloudobs.ahjxjy.cn/39618736AA44811087C44938D156DBC3.png style=vertical-align: middle;/>，则下列是<img class=jc-formula data-tex=\mu src=https://huaweicloudobs.ahjxjy.cn/44B6A27E434C1345C3CEEB7A5249665D.png style=vertical-align: middle;/>的无偏估计的是
①
<img class=jc-formula data-tex=\frac { 1 }{ n } \sum _{ i=1 }^{ n-1 }{ { X }_{ i } } src=https://huaweicloudobs.ahjxjy.cn/C47B85208815D85D3DD90DFEC473F7FF.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex=\frac { 1 }{ n-1 } \sum _{ i=1 }^{ n }{ { X }_{ i } } src=https://huaweicloudobs.ahjxjy.cn/F592094A4BE03E45216F0FE940311E37.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=\frac { 1 }{ n } \sum _{ i=2 }^{ n }{ { X }_{ i } } src=https://huaweicloudobs.ahjxjy.cn/72F0F6F417A0E32959CC0BA9BC395311.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex=\frac { 1 }{ n-1 } \sum _{ i=1 }^{ n-1 }{ { X }_{ i } } src=https://huaweicloudobs.ahjxjy.cn/1C176141AB6A855E8CFD52AEF5D595C0.png style=vertical-align: middle;/>
【单选题】
设前提: <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee />r, <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />q<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee />s, p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge />q. 则下面哪个不是其有效结论：
①
t<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/F388E7EE9892B38FECEEB653227F230A.png data-tex=\mapsto /> (r<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee />s)
②
r<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee />s.
③
r<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge />s
④
p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/F388E7EE9892B38FECEEB653227F230A.png data-tex=\mapsto />q
【单选题】
公式“<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg /> (q<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/F388E7EE9892B38FECEEB653227F230A.png data-tex=\mapsto /><img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />p) <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge /><img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />p”的主合取范式为:
①
M0.
②
M0<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge />M1
③
M0<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge />M1<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge />M2
④
M0<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge />M1<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge />M2<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge />M3.
【单选题】
公式“(p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee /> (q<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge />r))<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/F388E7EE9892B38FECEEB653227F230A.png data-tex=\mapsto /> (p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee />q<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee />r)”的主析取范式为:
①
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/9ABE9036703B48C5242D684BFF1D0CB2.png data-tex=\Sigma />(0, 1).
②
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/9ABE9036703B48C5242D684BFF1D0CB2.png data-tex=\Sigma />(0, 1, 2, 3).
③
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/9ABE9036703B48C5242D684BFF1D0CB2.png data-tex=\Sigma />(0, 1, 2, 3, 4, 5).
④
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/9ABE9036703B48C5242D684BFF1D0CB2.png data-tex=\Sigma />(0,1,2,3,4,5,6,7).
【单选题】
设前提: p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/F388E7EE9892B38FECEEB653227F230A.png data-tex=\mapsto /><img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />q, <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />r<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee />q, r<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge /><img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />s. 则下面哪个不是其有效结论：
①
q
②
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />p.
③
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />q
④
p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/F388E7EE9892B38FECEEB653227F230A.png data-tex=\mapsto />q
【单选题】
用等值演算法推导公式“(p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge /><img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />q)<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee /> (q<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge /><img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />p)”和下面哪个公式不等价:
①
(p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee />q) <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge /><img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg /> (p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge />q)
②
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg /> (p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/929202E378A4D342B21977DCDA32FBDA.png data-tex=\leftrightarrow />q)
③
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg /> ((p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/F388E7EE9892B38FECEEB653227F230A.png data-tex=\mapsto />q)<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge /> (q<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/F388E7EE9892B38FECEEB653227F230A.png data-tex=\mapsto />p))
④
(p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7BA9C8923F2F9C5684519175C6A722C4.png data-tex=\vee />q) <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge /> (<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />p<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/D50FEE5510C853C83F78D440017D8E6B.png data-tex=\wedge /><img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/09825764C15E56B1CFE3099F64BC5193.png data-tex=\neg />q)
随机题目
【单选题】
<imgdata-url="doc/a@F166ECE7E5C80E56201F2CF12A8211C6.jpg"data-preview_url_ueditor="doc/a@F166ECE7E5C80E56201F2CF12A8211C6.jpg"src="http://121.251.253.213/doc/a@F166ECE7E5C80E56201F2CF12A8211C6.jpg/download?time=636159463063828868&token=6B779CB0CF24492E5AC0BDCFF43DB14C&filename=jpg"/>
①
24
②
12
③
6
④
1
【单选题】
<imgdata-url="doc/a@64C1EC3EEA4DF633E8F805F3E58A8237.png"data-preview_url_ueditor="doc/a@64C1EC3EEA4DF633E8F805F3E58A8237.png"src="http://121.251.253.213/doc/a@64C1EC3EEA4DF633E8F805F3E58A8237.png/download?time=635997624680243587&token=CF4E2E55F28CEA774D83D73AB9CCD032&filename=png"/>
①
<imgdata-url="doc/a@CD9E3C0AEDBA75C158DE390C2B6821D9.png"data-preview_url_ueditor="doc/a@CD9E3C0AEDBA75C158DE390C2B6821D9.png"src="http://121.251.253.213/doc/a@CD9E3C0AEDBA75C158DE390C2B6821D9.png/download?time=635997625449012937&token=2B0506A7D55F104F3EB18AB1B438E15E&filename=png"/>
②
<imgdata-url="doc/a@A1D843C6B606CAFFF22FD80B5FD689F3.png"data-preview_url_ueditor="doc/a@A1D843C6B606CAFFF22FD80B5FD689F3.png"src="http://121.251.253.213/doc/a@A1D843C6B606CAFFF22FD80B5FD689F3.png/download?time=635997625578805165&token=FDE9A0AD61E747CAFD5D2725C22228BA&filename=png"/>
③
<imgdata-url="doc/a@F74F9887F67CF35CD12FD326A8DF07D7.png"data-preview_url_ueditor="doc/a@F74F9887F67CF35CD12FD326A8DF07D7.png"src="http://121.251.253.213/doc/a@F74F9887F67CF35CD12FD326A8DF07D7.png/download?time=635997625722481418&token=114591636EA36A1A2C9190B8F9009CBF&filename=png"/>
④
<imgdata-url="doc/a@1DD22FD883B6768EC3835E79FCEDA936.png"data-preview_url_ueditor="doc/a@1DD22FD883B6768EC3835E79FCEDA936.png"src="http://121.251.253.213/doc/a@1DD22FD883B6768EC3835E79FCEDA936.png/download?time=635997625829341605&token=00879720FD2F6C88D666C6E45BAAAFAF&filename=png"/>
【单选题】
<imgdata-url="doc/a@CF364D682E7EDC3D6F4E30F2BB4F580C.png"data-preview_url_ueditor="doc/a@CF364D682E7EDC3D6F4E30F2BB4F580C.png"src="http://121.251.253.213/doc/a@CF364D682E7EDC3D6F4E30F2BB4F580C.png/download?time=635997629330923755&token=1279F1B02A815952B66C14C416407130&filename=png"/>
①
<imgdata-url="doc/a@FD3BE4B9A603A28900BA1CE5A4917F8F.png"data-preview_url_ueditor="doc/a@FD3BE4B9A603A28900BA1CE5A4917F8F.png"src="http://121.251.253.213/doc/a@FD3BE4B9A603A28900BA1CE5A4917F8F.png/download?time=635997629504240060&token=541E9A5C2B0C3ED87051C8D3BDF24F82&filename=png"/>
②
<imgdata-url="doc/a@7A41590BEFCFCBE74C6F7E89E7967805.png"data-preview_url_ueditor="doc/a@7A41590BEFCFCBE74C6F7E89E7967805.png"src="http://121.251.253.213/doc/a@7A41590BEFCFCBE74C6F7E89E7967805.png/download?time=635997629627012275&token=B43E29170C3B3757C96EB1A856117760&filename=png"/>
③
<imgdata-url="doc/a@99F8D6DB9EB3FB1C901B53915B0A099D.png"data-preview_url_ueditor="doc/a@99F8D6DB9EB3FB1C901B53915B0A099D.png"src="http://121.251.253.213/doc/a@99F8D6DB9EB3FB1C901B53915B0A099D.png/download?time=635997629743700480&token=080FC0D2FF79A92E265FCC56F38259B3&filename=png"/>
④
<imgdata-url="doc/a@827C3797B683CCCEE410F2ACE266DAAE.png"data-preview_url_ueditor="doc/a@827C3797B683CCCEE410F2ACE266DAAE.png"src="http://121.251.253.213/doc/a@827C3797B683CCCEE410F2ACE266DAAE.png/download?time=635997629843852656&token=89F3878D2896DF9EE9FFD429BD4960F7&filename=png"/>
【单选题】
下列说法错误的是（）
①
矩阵的秩等于该矩阵的行向量组的秩
②
矩阵的秩等于该矩阵的列向量组的秩
③
一个n阶方阵的不同特征值对应的特征向量线性无关
④
相似矩阵有相同的特征多项式，从而有相同的特征值
【单选题】
<imgdata-url="doc/a@6DB4CF5F9C66FD17BC71BB963B29A7B4.png"data-preview_url_ueditor="doc/a@6DB4CF5F9C66FD17BC71BB963B29A7B4.png"src="http://121.251.253.213/doc/a@6DB4CF5F9C66FD17BC71BB963B29A7B4.png/download?time=635997628381662088&token=1C6275C21B6D06966B67391CC3F19CC3&filename=png"/>
①
<imgdata-url="doc/a@F410046D7922BA32E1663874BC2B5C36.png"data-preview_url_ueditor="doc/a@F410046D7922BA32E1663874BC2B5C36.png"src="http://121.251.253.213/doc/a@F410046D7922BA32E1663874BC2B5C36.png/download?time=635997628596318465&token=777D59C04A7A8D783EA1471DFB89335B&filename=png"/>
②
<imgdata-url="doc/a@1AF2C5AB025EC26732409D751F8DD5F6.png"data-preview_url_ueditor="doc/a@1AF2C5AB025EC26732409D751F8DD5F6.png"src="http://121.251.253.213/doc/a@1AF2C5AB025EC26732409D751F8DD5F6.png/download?time=635997628730166700&token=3FB693A96149E486567C840289970469&filename=png"/>
③
<imgdata-url="doc/a@1CA14D32B72BD4002480622B3B6819F1.png"data-preview_url_ueditor="doc/a@1CA14D32B72BD4002480622B3B6819F1.png"src="http://121.251.253.213/doc/a@1CA14D32B72BD4002480622B3B6819F1.png/download?time=635997628831410878&token=E8904182AEE541F27BF648C05282E255&filename=png"/>
④
<imgdata-url="doc/a@CEF42F04E29737B84007F47A8DE4CF5D.png"data-preview_url_ueditor="doc/a@CEF42F04E29737B84007F47A8DE4CF5D.png"src="http://121.251.253.213/doc/a@CEF42F04E29737B84007F47A8DE4CF5D.png/download?time=635997628964479112&token=CF20CB3A5FB1F69385D3E2366AC1E712&filename=png"/>
【单选题】
<imgdata-url="doc/a@CECAB6621178DA0FC14A9F01B8EABA4A.png"data-preview_url_ueditor="doc/a@CECAB6621178DA0FC14A9F01B8EABA4A.png"src="http://121.251.253.213/doc/a@CECAB6621178DA0FC14A9F01B8EABA4A.png/download?time=635997621331697706&token=72D1725FC09FED1732A810055557DD4C&filename=png"/>
①
<imgdata-url="doc/a@401B6CFC93678034521362B7B3923818.png"data-preview_url_ueditor="doc/a@401B6CFC93678034521362B7B3923818.png"src="http://121.251.253.213/doc/a@401B6CFC93678034521362B7B3923818.png/download?time=635997621880818670&token=C5FB225101A4B18FFAEE3B0929AC6597&filename=png"/>
②
<imgdata-url="doc/a@DB195B6BF6D10E38DF899BADB670342C.png"data-preview_url_ueditor="doc/a@DB195B6BF6D10E38DF899BADB670342C.png"src="http://121.251.253.213/doc/a@DB195B6BF6D10E38DF899BADB670342C.png/download?time=635997622229479282&token=2A1F4095DE1D46256CF51012A791C92A&filename=png"/>
③
<imgdata-url="doc/a@212A7460A6C592A199D4739FD72459E8.png"data-preview_url_ueditor="doc/a@212A7460A6C592A199D4739FD72459E8.png"src="http://121.251.253.213/doc/a@212A7460A6C592A199D4739FD72459E8.png/download?time=635997622563787870&token=B6F54A0208ABA12E4053CC4C58A2BD3D&filename=png"/>
④
<imgdata-url="doc/a@C3233A23DDE52F26000BD720F47B3A0F.png"data-preview_url_ueditor="doc/a@C3233A23DDE52F26000BD720F47B3A0F.png"src="http://121.251.253.213/doc/a@C3233A23DDE52F26000BD720F47B3A0F.png/download?time=635997622856444384&token=D3CB33D68D86784292599FF038F69B64&filename=png"/>
【单选题】
对于线性相关和线性无关，下列说法错误的是（）。
①
所含向量个数大于向量维数的向量组一定线性相关
②
如果一个向量组线性无关，则该向量组中一定不包含零向量
③
如果一个向量组线性相关，则至少存在一个向量可以由其它向量线性表示
④
如果n阶方阵的行列式为零，则该矩阵的列向量组一定线性无关
【单选题】
关于最大无关组，下列说法正确的是（）。
①
秩相同的向量组一定是等价向量组
②
一个向量组的最大无关组是唯一的
③
向量组与其最大无关组是等价的
④
如果向量组所含向量的个数大于它的秩，则该向量组线性无关
【单选题】
设A是m*n阶矩阵，Ax=0是非齐次线性方程组Ax=b所对应的齐次线性方程组，则下列结论正确的是（）
①
若Ax=0仅有零解，则Ax=b有唯一解
②
若Ax=0有非零解，则Ax=b有无穷多个解
③
若Ax=b有无穷多个解，则Ax=0仅有零解
④
若Ax=b有无穷多个解，则Ax=0有非零解