已知函数
,函数
在点
处的切线方程为
.
(1)求
的值;
(2)对于任意
,当
时,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae8b3779b90196be9cd0dc4d9a35bcc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd24f3c4bc9f9a75d4b28630bb630d2b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f58a2d3caab057fd306a2e3312d2e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d7cd029e1dda940ca062a828f8a72bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2020-12-28 08:47:17
|
相似题推荐
解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐1】已知函数
.
(1)当
时,若
的一条切线垂直于
轴,证明:该切线为
轴.
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8009bb48b25f496c3e8054b2e3d9961e.png)
(1)当
![](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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐2】已知函数
,且曲线
在点
处的切线方程为
.
(1)求实数
的值及函数
的最大值;
(2)证明:对任意的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a8087ef053283cd1c7db1a8f85f32ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e6e15daf7b14dbff32c390f4984dcfb.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ec9be2c77855102e7775ea9ede9630.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】若对任意
,恒有
,求实数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6eb0f0ae98e273d0bb9b7aa33905593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐2】已知函数
.
(1)若
,求
的最小值;
(2)若
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681cf83143f7e5ea666d3ae9fb0c36b1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950581caec90a28b5fa8f1e81bf21d19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a91152bc96611933362ea6df33187f14.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
【推荐3】已知函数
.
(1)讨论
的单调性;
(2)当
时,证明
;
(3)若不等式
恰有两个整数解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29f444db402303c7a0b67abfa0a8332.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d0d2761b7298a62a7f56caef88ee3db.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
解题方法
【推荐1】已知函数
.
(1)求
过
的切线方程;
(2)若
在
上的最大值为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9105da2d22ad5bff8ade00f34dc53aaa.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6554ac3dff4a59833e407db887f6e6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229e68b19cb1d96cc54236a7d8a1945c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4da5b8e19e0aaf01b401e4f239b3d9a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27a9ff534e5bca5c49032ea008b80582.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a10dc4dc6fc755c8c567ca56ef915c97.png)
.
(1)求
单调区间;
(2)①讨论
在
上的零点个数;
②若
存在
个不同的零点
,
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a10dc4dc6fc755c8c567ca56ef915c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96cb4145424fed120ed52100312f040d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)①讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344af2a2c7b27c259567c4b0b650069c.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](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/7a5dca561980ba6701c6b89be5d1b09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27df10c857bfd8bdfd6ec90be6c333e.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
解题方法
【推荐1】已知函数
,
.
(1)若
恒成立,求a的取值集合;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9160c498ba8f11044365d3821ca34d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58196b9e63ec00aa1119052b6de6ae12.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98df3895827f6eb3871e17e890ef7edf.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐2】已知函数f(x)=ex+
,其中e是自然对数的底数.
(1)若关于x的不等式mf(x)≤
+m-1在(0,+∞)上恒成立,求实数m的取值范围;
(2)已知正数a满足:存在x∈[1,+∞),使得f(x0)<a(-x03+3x0)成立.试比较
与
的大小,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e80db48e14bdb9dde98718259ec8c29.png)
(1)若关于x的不等式mf(x)≤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e80db48e14bdb9dde98718259ec8c29.png)
(2)已知正数a满足:存在x∈[1,+∞),使得f(x0)<a(-x03+3x0)成立.试比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0b52fba05677343daa1d9e8cffc40d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3e200b5722f1d8baf2bd205f524361a.png)
您最近一年使用:0次