名校
1 . 将-颗骰子先后投掷两次分别得到点数
,则关于
方程组
,有实数解的概率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3431fca14ab921f3d6d65c1714a650.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-12-16更新
|
565次组卷
|
3卷引用:四川省成都市双流区双流棠湖中学2019-2020学年高三上学期期末数学(理)试题
2012·河北·三模
2 . 若关于
的方程组
有实数解,则实数
满足
![](https://img.xkw.com/dksih/QBM/2013/6/3/1571238655975424/1571238661439488/STEM/0a6a31bff587472ab2513ad7ba90d3cc.png)
![](https://img.xkw.com/dksih/QBM/2013/6/3/1571238655975424/1571238661439488/STEM/326a16666f5549dab82c29860f6061f4.png)
![](https://img.xkw.com/dksih/QBM/2013/6/3/1571238655975424/1571238661439488/STEM/073e56a05b5542aca75c1495d43bbfe4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
3 . 若方程
的任意一组解(
)都满足不等式
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd18ab170f2f52856d3ef5ff51ec1787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d84a86bcc06a73a04db1b9d7363525.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-08-17更新
|
1511次组卷
|
2卷引用:吉林省松原市实验高级中学等三校2016届高三下学期联合模拟考试理数试题
2013·江西抚州·一模
4 . 若方程
的任意一组解
都满足不等式
,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa1fee18608990527d884f69e94375f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f718b0d3899c3bf206144569ccf015d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ab55147ca5c0f958af43b0637ee31b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 若方程![](https://img.xkw.com/dksih/QBM/2016/4/8/1572583652401152/1572583658201088/STEM/58a54b36348b43a18328ed80bd885d7d.png)
的任意一组解
都满足不等式
,则
的取值范围是
![](https://img.xkw.com/dksih/QBM/2016/4/8/1572583652401152/1572583658201088/STEM/58a54b36348b43a18328ed80bd885d7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2d514c172213d8cdf76b689b39f856.png)
![](https://img.xkw.com/dksih/QBM/2016/4/8/1572583652401152/1572583658201088/STEM/22d3897f5bf54943926ada824a5fe0b7.png)
![](https://img.xkw.com/dksih/QBM/2016/4/8/1572583652401152/1572583658201088/STEM/9e8f79c5b6f64e19a110892b8d472cb7.png)
![](https://img.xkw.com/dksih/QBM/2016/4/8/1572583652401152/1572583658201088/STEM/624e9a12ba664d8587464db86a74adf2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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