名校
解题方法
1 . 已知函数
.
(1)若不等式
在
上有解,求
的取值范围;
(2)若
,
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f53f81bca037a4383c1fab122a3cd3d.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba36990b55690eaa49dbb8ebf8bab0ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfb10cb12398146bf1ecad46db95ae69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c50d84d051a6e770d1eeefcdcd58b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac3259d4dcdd3c3db5abbcc5766f691f.png)
您最近一年使用:0次
2020-05-19更新
|
335次组卷
|
2卷引用:2020届辽宁省辽阳市高三二模考试数学(文)试题
名校
2 . 已知函数
.
(1)若函数
,求
的极值;
(2)证明:
.
(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3b6c56aee4bb8a8131fd960415c745.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ad0437dd483aab5f3ddb95d40ff5f42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219a92840265b62a0ee4597abb3c66b0.png)
(参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9405361d7be3c9e4d462a4e955d8fe3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7c0309456de2cd6420ece4fbc5eeddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75dac2c8d0372873ab97aa192d1cb124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e76dc56779402562bf991f546d345b2.png)
您最近一年使用:0次
2019-03-09更新
|
1030次组卷
|
6卷引用:【市级联考】辽宁省辽阳市2019届高三下学期一模数学(理科)试题
3 . 已知函数
.
(1)当
时,求
的单调递增区间;
(2)证明:当
时,
有两个零点;
(3)若
,函数
在
处取得最小值,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bf73b9070da41dbacc54b9787486da.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2894d5ac0919b100fdc1adfc6409bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce655a13dea9309f8ed84036ba293aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab409bb25958c2f01c73e26042c6f51e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d69ab3700eb8f2074beb83f523a30ba0.png)
您最近一年使用:0次
2019-01-11更新
|
629次组卷
|
2卷引用:【市级联考】辽宁省辽阳市2019届高三上学期期末考试数学(理)试题
4 . 已知二次函数
.
(1)讨论函数
的单调性;
(2)设函数
,记
为函数
极大值点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5397ee1eb6d157f6ec1e7a878f8d16e.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82135c13ccefdcf4da4ef15942e5c92f.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4915d641a6b011c0d6aa674215295b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183d255d42754146d4ae1f875f77644c.png)
您最近一年使用:0次
2018-04-05更新
|
1043次组卷
|
2卷引用:辽宁省辽阳市东南协作校2019-2020学年高三上学期9月份月考数学理科试题
解题方法
5 . 已知函数
.
(1)当
,求函数
的单调区间;
(2)若函数
在
上是减函数,求
的最小值;
(3)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d4bf57bf0c8e5c18500558c784bc94.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](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/189b2da6c420bf8f8900002d14f65f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5033e74441b3f487ed253cd9b9a57e89.png)
您最近一年使用:0次
名校
6 . 已知函数
.
(1)证明:当
时,函数
在
上是单调函数;
(2)当
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed85e516715c0082cae32f1a09cc312e.png)
(1)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6f803238435aad7c5ebdc9412ca486.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15086c88cde93aac1df959b54c43ef35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2018-03-24更新
|
964次组卷
|
5卷引用:辽宁省辽阳市2018学届高三第一次模拟考试数学(文)试题
真题
名校
7 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd27ceb61cbe46f92822908bf358675e.png)
(Ⅰ)证明:当
;
(Ⅱ)证明:当
时,存在
,使得对![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b3b01f12ef26f81926d28415be9508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77a53ae3ea66cc5cfc135ed0b5a4295.png)
(Ⅲ)确定k的所以可能取值,使得存在
,对任意的
恒有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3338bb45d357a3b840a972c96b91e5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd27ceb61cbe46f92822908bf358675e.png)
(Ⅰ)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8abe175a461f021d958980647ba2268b.png)
(Ⅱ)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2817c52144d06555e98131b5e657c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee21db6628e4db3f5831370549fa96b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b3b01f12ef26f81926d28415be9508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77a53ae3ea66cc5cfc135ed0b5a4295.png)
(Ⅲ)确定k的所以可能取值,使得存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddfddc5e57d54b4c083402308ecbbb03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84bad9eba131acc1d149c94a75cd3f26.png)
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2016-12-03更新
|
2179次组卷
|
5卷引用:辽宁省辽阳市七校联合体2019-2020学年高三上学期12月份月考理科数学试题
8 . 已知函数
,且曲线
在
处的切线为
.
(1)求m,n的值和
的单调区间;
(2)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c2d3fab8e29dcf59d458c1e8bcd465c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d0aa9412dd7caf42cc71520e282328.png)
(1)求m,n的值和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969e0ea877612922fe8b9d36ff188d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ec808ad60dbf016632ec816eaca1df.png)
您最近一年使用:0次
2023-01-04更新
|
759次组卷
|
4卷引用:辽宁省辽阳市2022-2023学年高三上学期期末数学试题