1 . 给出条件①
的最小值为
,②
.从这两个条件中任选一个,补充到下面问题中的横线上,并求解该问题.
已知函数
.
(1)若命题:“
,__________.”为真命题,求实数
的取值集合;
(2)若
在区间
内恰有两个不同的零点,求实数
的取值范围.
注:如果选择多个条件分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb93d10fda229dc4a697f2256783c890.png)
(1)若命题:“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
注:如果选择多个条件分别解答,按第一个解答计分.
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名校
2 . 已知二次函数
的最小值为1,函数
图象关于
轴对称,且
.
(1)求
的解析式;
(2)若方程
在
上有解,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b727eb9da56be079445321cf61cf26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ff5f5621db0dd6d5edaef8948a924b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31bc0c34811edba74dae3fcaed8f577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6070f2ee5e48cce77eb4a2cb9f11ccfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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3 . 已知集合
,
.
(1)若
,使
,求
的取值范围;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661a7d58ff3b6f1582a5b7e16839d075.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af01084d1b6ec3c5244744f9a10673cb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ccd7af9298cd5ff19d8866fedb42ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5353e276298ba6a05b6fef7a997c43b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eac19737d882225c903054eb4863501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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4 . 已知幂函数
是偶函数,且
.
(1)求
的表达式
(2)若函数
在
与
轴有交点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a895de622b7036627e15f5eb230f71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1144f28f383323fad90e2f595042ff.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb1ca15e2e1b9122c520776210517d98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-12-04更新
|
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4卷引用:江西省上饶市广丰区2021-2022学年高一上学期第三次月考数学试题
名校
解题方法
5 . 已知函数
.若方程
有三个不同的解,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6052daa0353bd3e1f9c85e437c7ecd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a18ca67c2770b98f36dbfd802595a95.png)
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解题方法
6 . 已知二次函数
.
(1)若
,试判断函数
零点个数;
(2)若对
,且
,
,试证明
,使
成立.
(3)是否存在
,使
同时满足以下条件①对
,
,且
;②对
,都有
.若存在,求出
,
,
的值,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bd0587f5d6a3b5db9e4a93e0dbc0ef.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a431537df789febf4bc45e3dc23cefaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aae2c13ad91dae29cf4d9f794a8808dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f27822887caad20f3a075ca2fb74155c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5674af497793537bc3e995e9a23ff7f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad91452a063a4418f16734ac08af82fa.png)
(3)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0e9d1ad9561d693958756ee8398218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18359c4572c04efac62c9ffc4821e65d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d58e59481f8320e20865616bb0aeccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
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7 . 已知函数
,
.
(1)若关于x的方程
恰有两个解,求m的取值范围;
(2)设
,若对任意的实数
,函数
在区间
上的最大值与最小值之和不大于
,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8441dca2bd57e68b05e03796cc3a7d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
(1)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21b8b47033825be5414aee5c5e4bec77.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218dea322c4bd90910d3959d52cb2703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8682c07954e4ba88e5766b1e005f03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781e6d5f1ece7c6c16f30ee911566efa.png)
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2021-02-05更新
|
383次组卷
|
3卷引用:江西师范大学附属中学2020-2021学年度高一上学期期末考试数学试题
8 . 已知定义在
上的偶函数
和奇函数
.
(1)求
的值;
(2)当
时,不等式
恒成立,求实数
的取值范围;
(3)若方程
在
上恰有一个实根,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe89ab83883ef84850dccb1b632f461.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9b45f4bef7c6701257f3cfd37b7fe.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af52d887f48c8b18a11c30b425c6ad54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7efe9fc4f3c7dbff019d6b0910603506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8129f58030813e7d734fce9565bd5aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d655ee6d4c2285b6f59652360862d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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9 . 已知函数
.
(1)若
在
上为增函数,求实数
的取值范围;
(2)若
在
上最小值为
,求实数
的值;
(3)若
在
上只有一个零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4298bf3206b7635c6ed0da92553a1f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-02-03更新
|
689次组卷
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8卷引用:江西省上高二中2020-2021学年高一上学期期末考试数学(文)试题
江西省上高二中2020-2021学年高一上学期期末考试数学(文)试题江西省上高二中2020-2021学年高一上学期期末考试数学(理)试题(已下线)专题6.1 方程的根与函数零点 A卷 -2021-2022学年高一数学单元卷模拟(易中难)(2019人教A版必修第一册)(已下线)专题6.1函数零点与方程根的分布 A卷-2021-2022学年高一数学单元卷模拟(易中难)(人教A版2019必修第一册)(已下线)第07节 函数的图象与方程(好题帮)-备战2023年高考数学一轮复习考点帮(全国通用)北师大版(2019) 必修第一册 名校名师卷 学业水平合格性测试2023版 湘教版(2019) 必修第一册 名师精选卷 高考水平模拟性测试(已下线)思想03 运用函数与方程的思想方法解题(精讲精练)-1
10 . 已知函数
.
(Ⅰ)求
的最小值,并求此时
的值;
(Ⅱ)若
,
分别是
的两个零点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427e2a095260a8a296c8f33837655332.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5c9cd9d577c47efbdcefd03d71792be.png)
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