1 . 已知函数
且
.
(1)求实数a的值;
(2)若函数
在
上恰有两个零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd535030ec92efe0b1a86a33b7306aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/008925a3b60d366297f31efa54aa38c9.png)
(1)求实数a的值;
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5b9f57d3634f8337f1414f8a2a2dc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
2 . 设函数
,则
__________ ,若
,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8a987a7020300eab1e2d6dd17e5c997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17e1bab294e299d6df888f148bb8a362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/606644020d85db2d0c30a89650c38962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
3 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0259b6bc8cbb1c69effeace2701a276.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828db29d1beeed409d2c2a70a07627f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3da03abf299ce665f59d424a2b9dec7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783dfdb08b4ed252bc46192b6b4f6c63.png)
________ .若函数
有最小值,且无最大值,则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0259b6bc8cbb1c69effeace2701a276.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828db29d1beeed409d2c2a70a07627f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3da03abf299ce665f59d424a2b9dec7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783dfdb08b4ed252bc46192b6b4f6c63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13f185ef210642539890407a32fc5894.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-02-03更新
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5卷引用:2023版 苏教版(2019) 必修第一册 名校名师卷 学业水平合格性测试
4 . 已知函数
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c1686d7874647916edb7aa214e90a4.png)
___________ 若存在实数
,使得
,则
的个数是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e277bfbf35d5bb5d28cf927747368630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c1686d7874647916edb7aa214e90a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed2b523ebc4b988974a0bd864a31dccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-11-27更新
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9卷引用:浙江省绍兴市第一中学2022-2023学年高二下学期学考模拟数学试题
解题方法
5 . 已知函数
,且
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e2ff94d4949458e796737ef8dde6ee6.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af8cacb199bdd4834332c465e0b659b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c7a2b72dec34ac13f001055bf75412.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e2ff94d4949458e796737ef8dde6ee6.png)
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6 . 函数
在
上单调递减的充分不必要条件是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df2af67877bf2a853af116c0ad2c1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ff4a1f5d3ad9d7668fe555e70b774c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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12-13高一上·云南玉溪·期末
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7 . 设函数
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8decad544aeec61eab970374fd0b4239.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eb0ebddd568a961981ea018b6cb8080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8decad544aeec61eab970374fd0b4239.png)
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2018-03-15更新
|
497次组卷
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8卷引用:2024年广东省普通高中学业水平合格性考试模拟(三)数学试题