已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7af3bb87c251df069d7ec2d2c9f0155e.png)
(1)当
时,讨论
的单调性
(2)当
时,若
,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7af3bb87c251df069d7ec2d2c9f0155e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e49916a62de77d839e0825d8b91dd777.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a882037b9ce104ecc496e0f31a139361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7be05919cfcf516586dc96166fcd6a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d2a320b9ff137ce3632296c4b1d79a.png)
更新时间:2022-07-16 23:04:15
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解答题-证明题
|
较难
(0.4)
名校
【推荐1】已知函数
.
(I) 求函数
在
上的最大值.
(II)如果函数
的图像与
轴交于两点
、
,且
.
是
的导函数,若正常数
满足
.
求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5526af76565a53e3686d351912cfa3ed.png)
(I) 求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
(II)如果函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00210f79b04a8f6bc1922433d00bc89a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ec3d75e53b990bc8f9a4622928dd21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b583230a32b774445332490c511989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d41acc47493556617fe7b9e55093d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c143f05313fc69baaa0de68f2114bcd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd5371a6f0f82c65dd22f75f8b807c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3203b65cd0f5e87c5d8441e1b72e7d10.png)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5048d4451deb23a306f21a6365ea603b.png)
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解题方法
【推荐2】已知函数
(其中e为自然对数的底).
(1)若
在
上单调递增,求实数a的取值范围;
(2)若
,证明:
存在唯一的极小值点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa5e01a42421e4aabee073b6f552f18.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b434a9b41356aa5e866f7324dd2d5b43.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](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/60011bf310a979c3f441bc5d31b8a0bd.png)
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解答题-问答题
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较难
(0.4)
【推荐1】已知函数
.
(1)讨论
的单调性.
(2)是否存在实数a使得不等式
恒成立?若存在,求出a的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba17f18c17d3d9f4145022baeb5c72bb.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)是否存在实数a使得不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7bd5bd2d1a8efc1133813864f3b65fe.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
.
(1)若曲线
在
和
处的切线相互平行,求
的值;
(2)试讨论
的单调性;
(3)设
,对任意的
,均存在
,使得
.试求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a482c5dcad03b79cb1ce314bb474ba.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)试讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13ddac37d332169a34598a63b4634b46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a01cf2049366b2f0172302495f44c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045a5369e2f603406921ebafb84bc88b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ca3b1f02a33e3370d59d60cf58682a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐3】已知函数
,其中
.
(1)讨论函数
的单调性;
(2)若函数
有两个零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd037cec87ff3f7cefcde02a9411a7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)讨论函数
![](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/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次