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1 . 关于
的二元线性方程
的增广矩阵经过变换,最后得到的矩阵为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3fa6438d73fac62ea3d535f1c1cdab.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777f2113acaeab1f50b0ee2adbe31265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0dc24b10ff49293e3d090cafd931e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3fa6438d73fac62ea3d535f1c1cdab.png)
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2 . 方程组
无解,求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e70907f40d17609b4b5ff6a73cb67cb3.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cdef58c3d8f3d50088ecd27e96f05b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e70907f40d17609b4b5ff6a73cb67cb3.png)
您最近一年使用:0次
2021-01-25更新
|
161次组卷
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4卷引用:上海市春季2021届高三高考数学试题
上海市春季2021届高三高考数学试题(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)(已下线)专题03 幂指对函数必考题型分类训练-1沪教版(2020) 25天高考冲刺 双新双基百分百9
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3 . 方程组
的解集为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e765722f85669fee0ec78051146c5f.png)
您最近一年使用:0次
2020-10-14更新
|
123次组卷
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2卷引用:上海市格致中学2020-2021学年高一上学期10月月考数学试题
4 . 关于
,
的二元一次方程组
,有无穷多组解,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669dfcbf5cbf4bc41aaf71f13b89d32f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次
5 . 当实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
________ 时,方程组
有唯一解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6881f2eeaeff734cf16d8a7d23758d1.png)
您最近一年使用:0次
6 . 关于
,
的方程组
无实数解,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89eda5b213999ebc0da3f11a69d06e0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次
7 . 我国古代数学著作《算数书》中有这样一个问题:“精米二斗值三钱,糙米三斗值二钱.现在有精、糙米共十斗,卖了十钱,问精、糙米各多少斗?”设精米、糙米斗数分别为x,y,则
,可解得![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8345f5aaa18c18876a2159793ded5df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
您最近一年使用:0次
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8 . 关于
、
的二元一次方程组
,
无解,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b657cfa91b6394e4b00fa385a2c0149.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cbb11b8e59d7f83f2f085de27bf41a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc8ef902dc3481ae24d888f57466154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b657cfa91b6394e4b00fa385a2c0149.png)
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2020-02-29更新
|
100次组卷
|
3卷引用:上海市交通大学附属中学嘉定分校2019-2020学年高二上学期10月月考数学试题
上海市交通大学附属中学嘉定分校2019-2020学年高二上学期10月月考数学试题上海市建平中学2019届高三上学期10月月考数学试题(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)
19-20高二上·上海浦东新·阶段练习
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9 . 若增广矩阵
的线性方程组无解,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/935ae36f1bff88fc927474dfcf004709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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10 . 若关于
的线性方程组
有无穷多组解,则实数
的值是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61599f3da4fecbbfeb37855252cf8f24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-02-04更新
|
102次组卷
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2卷引用:2016届上海市普陀区高三三模(文科)数学试题