1 . 三阶行列式
中第
行第
列元素的代数余子式的值小于
,则实数
的取值范围为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86bbbd0dfc62ed9125fa80bb762ac1d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2 . 三阶行列式
的第
行第
列元素的代数余子式的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f67432abf8e03dee7c82c021033bc458.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
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3 . 矩阵的一种运算
,该运算的几何意义为平面上的点
在矩阵
作用下变换成点
,若曲线
,在矩阵
的作用下变换成曲线
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c158a0dafc1ed72d4cd92ce8be537d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1eaadd274b7644891f5550a799a11bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe027ff8bff5b84819a7d2c514e9de2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3fa06df195ae83f7ea63b16158748be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5339be0bc4d6f090b6de7112636d500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760a793ad8dadeba59aef81106e95288.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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真题
名校
4 . 某班试用电子投票系统选举班干部候选人,全班k名同学都有选举权和被选举权,他们的编号分别为1,2,
,k,规定:同意按“1”,不同意(含弃权)按0”,令
,其中
,且
,则同时同意第1,2号同学当选的人数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/237e6478ccb922c911926fc7fe2c1954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940cd957b9db25326a0c7a413df7f1d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d796f419d4ef9ba590cb825ebb87cdd4.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
2022-11-09更新
|
236次组卷
|
6卷引用:2019年上海市上海中学高三下学期数学测试2数学试题
2019年上海市上海中学高三下学期数学测试2数学试题北京一零一中学2020-2021学年高一新生入学摸底测试数学试题2003年普通高等学校招生考试数学(理)试题(北京卷)2003年普通高等学校招生考试数学(文)试题(北京卷)(已下线)考向16 数列求和及数列的综合应用-备战2022年高考数学一轮复习考点微专题(上海专用)辽宁省实验中学2023-2024学年高二下学期期中阶段测试数学试卷
5 . 行列式
中元素0的代数余子式的值为5,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d67b9ead140f470010ad28cf3e5560eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
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6 . 若矩阵
与
满足
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9511f4c7c3f6eb94f54152e67e50427c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72885b199c12c6160ab6518335e12b96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9bee7a3e6a2c01e3196fd1dbe40cb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
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7 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c97a5bc3447232182b769992efe8248c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90f12969403db37bb2010f9b0416ed3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
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8 . 若矩阵
,定义
为行列式
的值,已知
,
,
,求矩阵
、
,并比较
和
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d08c396f1024c193297dfc269677636e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6561cc3fcdffc8bbf78c4e8fbad6e0cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/555eaed9ff42d175444d6c249e8c7bf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf039c46a25e331446c6ee1e9af3c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354b2f69e6ed3a475d05a42958019c7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a95ef4c81a54df1906998a101d73a35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99de34d8d767424f869111af4cd2c538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d134f3e5ccd2d58b567678256efc4de0.png)
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9 . 已知行列式
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb8cc25dc1f79ea88d3c377780b95b0e.png)
________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4b297f5a53a79fbed1c513984bd220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb8cc25dc1f79ea88d3c377780b95b0e.png)
您最近一年使用:0次
2020-12-02更新
|
99次组卷
|
2卷引用:上海市位育中学2021届高三上学期期中数学试题
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10 . 计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9217e92b1813784837a80f8bc2a8471.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9217e92b1813784837a80f8bc2a8471.png)
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