1 . 在行列式
中,元素
的代数余子式的值是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/446adbbdac093b471727902a17f54002.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-09-03更新
|
105次组卷
|
2卷引用:上海市浦东新区2020届高三下学期教学质量检测数学试题
2 . 在平面直角坐标系
中,已知
,
,
.设变换
,
对应的矩阵分别为
,
,求对
依次实施变换
,
后所得图形的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faef8169baa38bb7af7212ea69fd99f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34475572a5c8993b8bc7803eac6afc35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d36cf4115062073e8a0468bae7e8a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9a724b59c890095baa5cb73e267c44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9275bd8ce17fcc4a786510b008414ab0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d451da63e7dae5c03460af2566fb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b20efdbe21ca5d83a1437f89c5fe1ec1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9a724b59c890095baa5cb73e267c44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9275bd8ce17fcc4a786510b008414ab0.png)
您最近一年使用:0次
3 . 已知行列式
,则行列式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e8ad3e95a0ca764d4fdf387783c582.png)
_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b836314fc8227ae29752c02d9dd90af1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e8ad3e95a0ca764d4fdf387783c582.png)
您最近一年使用:0次
名校
4 . 若增广矩阵为
的线性方程组的解为
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89dd94e2be99716b3e3762a12c4a4c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b342e49815220f2c0c16d65f8f92e9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次
2020-07-06更新
|
184次组卷
|
4卷引用:2020届上海市普陀区高三二模数学试题
2020届上海市普陀区高三二模数学试题上海市普陀区2020届高三下学期质量调研数学试题上海市上海师范大学附属中学2020-2021学年高二上学期期中数学试题(已下线)课时28 矩阵的概念及运算-2022年高考数学一轮复习小题多维练(上海专用)
5 . 已知矩阵
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a375ca77464edc49e7e1473eeb6c1b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68b43ce6a3774527e6cf5a86d49168f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
您最近一年使用:0次
6 . 方程组
的增广矩阵是______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe78cd0f2960f70e982d903a47d97478.png)
您最近一年使用:0次
名校
7 . 行列式
中
的代数余子式的值等于__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d9de4ef85ecbf840c2eef75d382369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
您最近一年使用:0次
8 . 若不等式
的解集为
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/332faeb497a7a4a7226b385f86fdebd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e390f45a8413c7b10023ea0d6543ca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
9 . 已知
是虚数单位,
是复数
的共轭复数,若
,则
在复平面内所对应的点所在的象限为第________ 象限.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0c2f978b8ec6a7d1c8f17bfa81d1cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/220f6c1e8ecbff17389cbc370b6ac035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0c2f978b8ec6a7d1c8f17bfa81d1cd.png)
您最近一年使用:0次
名校
10 . 若线性方程组的增广矩阵为
,解为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b58bccbd915d16651e9f0fc66d8fc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a20d803845c706326c77e1af53afc5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
您最近一年使用:0次
2020-01-07更新
|
94次组卷
|
6卷引用:上海市向明中学2018-2019学年高二上学期12月月考数学试题
上海市向明中学2018-2019学年高二上学期12月月考数学试题上海市曹杨二中2017-2018学年高二上学期期中数学试题2017届上海市徐汇区高三上学期学习能力诊断(一模)数学试题上海市徐汇区2015-2016学年高二上学期期末数学试题上海市晋元高级中学2018-2019学年高二上学期期中数学试题(已下线)课时28 矩阵的概念及运算-2022年高考数学一轮复习小题多维练(上海专用)