名校
解题方法
1 . 已知函数
,给出以下说法:
①若函数
的最小值为
,则
;
②若函数
的定义域为
,则
;
③若函数
的值域为
,则
或
;
④若
,则函数
的单调减区间为
;
⑤若函数
在
上单调递减,则
.
其中正确说法的个数为__________ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed714c237751cd78e98bb944e6d3512d.png)
①若函数
![](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/f22a4a0dd7307a1323d25331e60782d8.png)
②若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8b8dad5e939693558ae667328b4f57d.png)
③若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93a078cca891304dfb3887278b5fbc70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e10140ab3cdc13d710a65b2287c892b.png)
⑤若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0f9f734c03d04c21edefa08e0acc1fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c0a8155f5a6af42d37856f6c95a0bc.png)
其中正确说法的个数为
您最近一年使用:0次
解题方法
2 . 已知函数
且
.
(1)若函数的图象过点
,求
的值;
(2)当
时,若不等式
对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a4ca8a7224df2437df604da28dafc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fa1476cf3552b9ae91ef039b1c6c80.png)
(1)若函数的图象过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80991c1f0c963104740e50cfff6f29a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae463439ea738819adc0d773bc5ad93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538193a4717d564c01145e82314c2d1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
3 . 函数
(
,
,
),若
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9039ec24d33430b3e5708b47e43350.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9c9c6390df1ab51a280e86cd56b6a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f811fdd927c2b3ef4ccb1b46b45ab82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.4 | B.4或![]() |
C.2或![]() | D.2 |
您最近一年使用:0次
2024-01-18更新
|
379次组卷
|
3卷引用:广东省广州市九区联考2023-2024学年高一上学期期末教学质量监测数学试卷
名校
4 . 已知函数
(
,且
).
(1)若点
在函数
的图象上,求实数
的值;
(2)已知
,函数
,
.若
的最大值为8,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a04546d92fd165fc1ad2cc82c2dbb25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0e2d850b24f3aad07af4134de8d0e30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90c6056c45c7b69d874c31523f09702c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b0b855f44d2f7755b3772a069fda1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-01-11更新
|
355次组卷
|
2卷引用:河北省石家庄市第二中学本部2023-2024学年高一12月月考数学试卷
解题方法
5 . 函数
,
(
),对
,
使
成立(
为自然对数的底数),则实数
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a19785dd32b917e7ee978bce7b17594a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a1a035ad42aa0a07b61a50a08ff065c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0bb7bb34b5f4d32fc07b47752fa171d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/586f75b266c1fa673d6e38299eaf3863.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29cf4f9640637c4ec7804da532b6a819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
6 . 已知函数
,
.
(1)求函数
的定义域;
(2)若函数
在区间
的最小值为
,求实数a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d29be4a24f2e940a931a92d72eef45e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df3855a4c053b11330f1d98affcea7df.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fab11f38ab8593932082ec4d9c8c91f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
您最近一年使用:0次
2023-01-04更新
|
364次组卷
|
2卷引用:辽宁省沈阳市东北育才学校2015-2016学年高三上学期第三次模拟数学试题(文科)
7 . 设集合
,若当
时,函数
的最大值为2,求实数a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db25a7d266c87ae908bd0d5e7934680a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a876d7f2a9cf5f5087dbdda661272ad.png)
您最近一年使用:0次
名校
解题方法
8 . 已知函数
=ln(ax2 +2ax+1)定义域为R,
(1)求a的取值范围;
(2)若a≠0,函数
在[-2,1]上的最大值与最小值和为0,求实数a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)求a的取值范围;
(2)若a≠0,函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
2021-12-10更新
|
1090次组卷
|
7卷引用:重庆市字水中学2021-2022学年高一上学期期中数学试题
解题方法
9 . 若关于
的不等式
对任意的
恒成立,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a81748b8d2972270f5a998f98a7dd26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4cbc7b067862a3d9c6789b392fc068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
名校
10 . 知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b09d815b09b3fbca6cb4b83d472a5774.png)
(1)若函数的定义域为
,求实数
的取值范围;
(2)若函数
在
上恒有意义,求
的取值范围;
(3)是否存在实数
,使得函数
在区间
上为增函数,且最大值为2?若存在,求出
的值;若不存在,请说明理由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b09d815b09b3fbca6cb4b83d472a5774.png)
(1)若函数的定义域为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9210e75c35fb455d0446eb7ddba7d79c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a248e47163191168a1b363937eebd618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2020-12-05更新
|
1622次组卷
|
6卷引用:重庆市江津中学2020-2021学年高一上学期第二次半月练数学试题
重庆市江津中学2020-2021学年高一上学期第二次半月练数学试题(已下线)黄金卷05-【赢在高考·黄金20卷】备战2021年高考数学全真模拟卷(江苏专用)(已下线)专题2.13 对数与对数函数-重难点题型精讲-2022年高考数学一轮复习举一反三系列(新高考地区专用)(已下线)专题06 函数的概念(已下线)专题06 函数的概念-4第四章幂函数、指数函数和对数函数单元测试