设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d217e287542c821eaad988a70670a1.png)
.
(1)求
的单调区间;
(2)若
,
为整数,且当
时,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d217e287542c821eaad988a70670a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5bb89c3ad435f1ef59307b174105ed.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c1d83e687e18832b3e21d65516a91a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
更新时间:2021-06-20 06:57:05
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解题方法
【推荐1】设函数
(
为自然对数的底数),
,
.
(1)若
是
的极值点,且直线
分别与函数
和
的图象交于
,求
两点间的最短距离;
(2)若
时,函数
的图象恒在
的图象上方,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/333fab7fbfac6397f5be52b15e7b9c17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdef85d50578d84a92ffcc754f7afddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4633de9335d15d7685bdecb007a3678c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f17951a1ec9d20e82d78222cf9a6ea9.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/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f5a90aeba435af22d6bcdb7b91650b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5031e329aa639664c4671aaed4e07926.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
【推荐2】已知函数
,
,其中
是
的导数.
(Ⅰ)求
的最值;
(Ⅱ)证明:
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2021a127d0a2f11281fd317bf6093d76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3efb3c4eb2061fb6d2b93f089ad779ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33770cd4511e0f50f2d959ffd913e97f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6422b9c2e93a91fe9e39ce4d9dabb0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e9d102f40bfebcbe690794cbf08415f.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
解题方法
【推荐1】已知函数
.
(1)求
的最小值;
(2)设函数
,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e87f6be829e9c95cee0651412e7549f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f6c47ed83e33fe24596c2937dfd1321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfaf5afd77bd894df1e1a672040de990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
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【推荐2】已知函数
.
(1)当
时,求
极值点的个数;
(2)若
,
是
的两个极值点,且
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abdf185fa9f5036d8fe982b7073f3bdf.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c1f6306e1c902dc750417cf8d703bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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解答题-证明题
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【推荐1】已知函数
,求证:
(1)函数
有且仅有一个零点;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/786fe11037dafeaa40d204a37acc10ba.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd2152e1932768578c5c4440e6db0776.png)
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【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e26788a11b37ce305f080e5b24a3bc.png)
.
(1)求函数
的单调区间;
(2)求函数
的零点个数;
(3)当
时,求证不等式
解集为空集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e26788a11b37ce305f080e5b24a3bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf8197e4f3fd18815045d29c357a863.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/576e46387412fddf8bc25fda0441b090.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9959538ec4a4fe97c14d5149426fa50.png)
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【推荐3】设函数
为
的导函数.
(1)求
的单调区间;
(2)讨论
零点的个数;
(3)若
有两个极值点
且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05af102e25a7d82a7698614095ec8d14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c58cc80f792a9262c4da33fabd21e95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ca13a93b5f401c0d39ba52b0cffcb0.png)
您最近一年使用:0次
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(0.4)
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解题方法
【推荐1】已知函数
,其中
.
(1)若
,求
的单调区间;
(2)已知
,解关于x的不等式
.(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab5ced9230a9cc4142f40dfc307aee06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24fc88d47f3353c060e85b445766edc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04bbcc3eb28e550b30e7ba6eaa09fe8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d3b1a2f3803f5bc4ef054341a08404.png)
您最近一年使用:0次
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【推荐2】已知函数
.
(1)讨论函数
的单调性;
(2)若不等式
对任意
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3af2afd4ae747b3340b9354ce80d53.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f27ebb5a7c666dc60858fc08b33d4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐3】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6910b3f37a0c9f3234a7f1b5e292366.png)
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd7ad6f1860dd8ba85d6e315de4deaf.png)
(1)若
讨论
的单调性;
(2)若过点
可作函数
图象的两条不同切线,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6910b3f37a0c9f3234a7f1b5e292366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e5ff2705eb737adef9a6dc70559d79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd7ad6f1860dd8ba85d6e315de4deaf.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8dc2c9d268145930a3de56f13ccb08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a9301fc1ac223f9ddee3e918b4d882.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb69afd7bc1a8109009e9fe9498dc69d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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