1 . 满足下面两个条件的整数
的所有取值之和为( )
①关于
的不等式组
的解集为
;
②关于
,
的二元一次方程组
有正整数解(
,
均为正整数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
①关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8133647936517c331afa76f2405ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
②关于
![](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/d321103b24a6e7175d37441d0c6aeb8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
A.9 | B.8 | C.7 | D.6 |
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2023高三上·全国·专题练习
2 . 下列结论正确的是( )
A.东南方向与南偏东![]() |
B.若![]() ![]() ![]() ![]() |
C.从![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
D.俯角是铅垂线与目标视线所成的角,其范围为![]() |
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解题方法
3 . 下列命题中正确的个数是( )
①函数
既是奇函数,又是R上的增函数
②不等式
的解集为R,则实数
的取值范围为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a2b13d4eb8aaff7042dd6c54469f45.png)
③
的定义域为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e3cefebfef1b8c91ad2e9ede5c195e.png)
④若
为偶函数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8184d4f959385db2231b2cc35606e1.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc0b1b3ff7b701b30cef0ac691448c96.png)
②不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9666d177284abf2e54135a40ec0e823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a2b13d4eb8aaff7042dd6c54469f45.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea6f77058ce9029f6845c882dc0e6a8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e3cefebfef1b8c91ad2e9ede5c195e.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/750620faa69d866ed75eeab194f0218d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8184d4f959385db2231b2cc35606e1.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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名校
解题方法
4 . 定义:设不等式F(x)<0的解集为M,若M中只有唯一整数,则称M是最优解.若关于x的不等式
有最优解,则实数m的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb7bfc489f066e117808bfe7c9f8e413.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
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2021-12-17更新
|
1424次组卷
|
4卷引用:第八章 函数应用(选拔卷)-【单元测试】2021-2022学年高一数学尖子生选拔卷(苏教版2019必修第一册)