已知函数
,
.
(1)当a=0时,求函数
的单调区间和函数取得极值时的
值;
(2)若函数
,
,且函数
在
上存在极小值,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a92f447eafcfefc0bee4def63b422006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当a=0时,求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3d34df542c2aa9167e65b91dc408de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6a96f8e6f87b654dc87436770b7d9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f5dbe76b333388b5529db7090b7ba67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3247f03357462fec934f37c65ebdc77e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2021-05-10 18:21:51
|
相似题推荐
解答题-问答题
|
较难
(0.4)
解题方法
【推荐1】已知函数
,
,曲线
与
在原点处的切线相同.
(1)求
的单调区间;
(2)若
时,
,求k的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9cb764fc6083a4649e1fbdd42d906c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b76fcac5f3fadd5b1076db1a308eb53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffc4c5816b3a5b5b666ee7ef07b4e91d.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
.
(1)当
时,求
的单调区间;
(2)若
存在两个极值点
,
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff6b02b34ded76bfc31263ab94bf71f6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e9222ffc26c0e6bfbf252ab5d8a520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a21000b28139c8b2c516cc2c5313488.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐3】设函数
.
(1)当
时,求函数
的单调区间;
(2)若关于
的不等式
对任意的
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3513e6d8891aa16f2fd198f955dd6dc9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.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)
【推荐1】已知函数
,其中
.
(1)若
是
的极值点,求
的值.
(2)讨论
的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2733467964dee99f9eb0f59266ee6374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799efe09bf12fbdb21c56a8c1e1b2dc1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐2】已知函数
在
处取得极值.
(1)求实数
的值;
(2)若关于
的方程
在区间
上恰有两个不同的实数根,求实数
的取值范围;
(3)证明:对任意的正整数
,不等式
都成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/349655426cff1798761e5aec1539c023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a9c64a7a90fbcfa751abbedf92b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)证明:对任意的正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b65d90928051195bde98fe428258abae.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1】已知曲线
(其中e为自然对数的底数)在
处的切线方程为
.
(1)求a,b值;
(2)证明:
存在唯一的极大值点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfce2dcb88bcfa39952c3e7b90c82bda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a84068f8dd5b4840688a2e560dab18.png)
(1)求a,b值;
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84d307156d40a524a4af6a5bf075779.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/128101c474107148b622d00251097f9e.png)
(1)若
求a的值;
(2)若a>1,求函数f(x)的单调区间与极值点;
(3)设函数
是偶函数,若过点A(1,m)
可作曲线y=f(x)的三条切线,求实数m的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128101c474107148b622d00251097f9e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/456122c92fc282199d71a5cb730a7806.png)
(2)若a>1,求函数f(x)的单调区间与极值点;
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68b0589fd0955a1b05e5a54da9cc4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bdc75a92549204f376840e942d95d6e.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐3】设函数
.
(1)若
的图象的一条切线
在
轴上的截距为1,求切线
的方程;
(2)求函数
的极值点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ba679b1ab0b8e2394f3b5b7556da35.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28af863ba1115c48dfda62798ef4da3.png)
您最近一年使用:0次