名校
1 . 当
时,下列关于方程组
的判断,正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4967f87cd5be9fed1587f48324b12c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ff15c8872c34b760fa9f536c819359.png)
A.方程组有唯一解 | B.方程有唯一解或无穷多解 |
C.方程无解或无穷多解 | D.方程组有唯一解或无解 |
您最近一年使用:0次
2019-12-11更新
|
152次组卷
|
4卷引用:沪教版 高二年级第一学期 领航者 第九章 单元测试卷
2 . 解关于
,
的方程组
.
![](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/0a68436344a282b228182290649a68a6.png)
您最近一年使用:0次
3 . 关于
,
的方程组
无解,则实数
的值是
![](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/b64b03feb1b71562f4da1b194b065a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.不存在 |
您最近一年使用:0次
4 . 当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_________ 时,关于
,
,
的方程组
无解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.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/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8b9384775e131f5de4f5acadd4edd6f.png)
您最近一年使用:0次
5 . 关于
,
的方程组
有唯一解的充要条件是__________ .
![](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/27b053e40ff5c6d7abce384515909a05.png)
您最近一年使用:0次