1 . 已知函数
在
上的最大值是3,则实数
的值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa0e3585767b4e70c526726a7b73b379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
2 . 已知函数
,其中
.
(1)求
在
的最小值
;
(2)若
,使得
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93638a5c17b61a62583a027275068e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315dfde04472db49d8c28bd77c5c72c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81d82d27210f9b1014485a6e1c8bac3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21bbe5018d19c7b7bfacaa23eac5b910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
3 . 已知函数
在区间
上有最小值2和最大值10.
(1)求
,
的值;
(2)设
,若不等式
在
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4fb55a9b652b2df14da2162095eec8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fab11f38ab8593932082ec4d9c8c91f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab409bb25958c2f01c73e26042c6f51e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e7408a725559ffb011a648e8ba50565.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d58567d3cb3137e68b7ff1671cd8433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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4 . 若“函数
的图象与
轴正半轴相交”是“
”的必要不充分条件,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/761c1d62c95a4a492e9239e8b272cb5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ec464d49e881be61bf0c79e8f96fabb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-03-26更新
|
1281次组卷
|
5卷引用:广东省肇庆市德庆县香山中学2022-2023学年高一上学期期中数学试题
5 . 已知函数
.
(1)直接写出
在
上的单调性,并解关于
的不等式
;
(2)若函数
,
是否存在实数
,使得
的最小值为0?若存在,求出
的值,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b9fe969cfdc81e4e6fcdf251119b3d.png)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a447dc9650dba45dfc9199e0f0fe9f3.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ded8545ec37ade1ed358dee5532d4ac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6070f2ee5e48cce77eb4a2cb9f11ccfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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6 . 已知
.
(1)若函数
在
上单调递减,求实数a的取值范围;
(2)
,用
表示
,
中的最小者,记为
.若
,记
的最小值
,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0e32ed7e4103a4cb1c3c0be6efde42.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2067a6792ec6f17f8a34d9d49366701a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fc21804abf318233a5186b284f717c.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3859cd3de4d6d485df050b0f5321d6c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d3f3110e980874c1bc58bd84281d67d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790daaa89fc9d093f45023becf765697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a90170d7ef5ff6d1d63517c166f7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78f28d4d509fee62f957091def8c71ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760f804646698060703c5458ff5637c7.png)
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2023-03-01更新
|
286次组卷
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4卷引用:重庆市渝东九校联盟2022-2023学年高一上学期期中数学试题
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解题方法
7 . 已知函数
,
.
(1)若函数
的图象关于直线
对称,求实数
的值,并写出函数
的单调区间;
(2)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11708d4426766a6406446ac030383883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a84c5c7a0075f3d31a6def4fbf641dbc.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc3e321b0932323e063aa03470db808b.png)
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2023-01-14更新
|
344次组卷
|
2卷引用:浙江省宁波市效实中学2022-2023学年高一上学期期中数学试题
名校
解题方法
8 . 已知函数
.
(1)若函数
的值域为
,求实数
的值;
(2)当
时,函数
的最大值为2,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344b4c761f1e2e467f5fdd9606ae18d2.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e58768fc0df02f60aa54d00fe063c52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
9 . 已知函数
,
.
(1)当
时,不等式
的解集;
(2)当
时,求函数的最大值和最小值;
(3)求实数a的取值范围,使
在区间
上是单调函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21c44d61210c51184f883760fdc249a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed7727b385ccde685c4d855f459768d7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1bf0995f32a13d0a9e423f3e88ab271.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
(3)求实数a的取值范围,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/726c255e5f5ed80378bcbe5b9913a6ad.png)
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10 . 若函数
在
上单调递增,则
取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae53b020d76d11b6f2f830069b306cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2628e2dd7a988cc80530e739c22b2280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-01-05更新
|
573次组卷
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3卷引用:广西桂林市逸仙中学2022-2023学年高一上学期11月段考数学试题
广西桂林市逸仙中学2022-2023学年高一上学期11月段考数学试题3.3 指数函数同步练习-2022-2023学年高一上学期数学北师大版(2019)必修第一册(已下线)4.2.1指数函数的概念+4.2.2指数函数的图象和性质【第二课】