已知函数
,
为
的导数.若
时,
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb444fe87941bcd1c91adb60a14b796b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5241746e4c300cc6ce6f67ef25b71e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06282ad603b7a56f22bb084ecc365aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27794407a3d82a6746f7e0871051f486.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa96f3b9e5532397007d9c5e7ac78edc.png)
2024高三·全国·专题练习 查看更多[1]
(已下线)专题02 利用导数求解函数极值及最值问题(四大类型)
更新时间:2024-05-23 08:52:17
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解答题-问答题
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困难
(0.15)
名校
【推荐1】已知函数
.
(1)讨论
的单调性;
(2)若关于x的不等式
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6da3d0e06e3170b19499f3e3dddec2c9.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0191ec794946cad081cce367780472c9.png)
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解答题-问答题
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困难
(0.15)
解题方法
【推荐2】已知函数
,若对任意的
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16728ce9b413dea891140f7d5b029d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceb0e8920273954fe892f5922dbdf765.png)
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解答题-证明题
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困难
(0.15)
名校
解题方法
【推荐1】已知函数
.
(1)若
,求
的值;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff998a833ce2280471a45eff0ffc843.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a09145206ea1060dbba927a9d12569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e653994b245fbdc2ac3458429c65e69e.png)
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解答题-问答题
|
困难
(0.15)
【推荐2】已知函数
.
(1)若曲线
在
处的切线过点
,求
的值;
(2)若
有两个极值点
,若
,求正实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cba3934fb0e785780c7f2a72f3ac9583.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43db00e106c7d08a76a7ba71ca5e63d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf84052b8ea411842f61c1f90b75fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d56c3645854b9329fc9d2d4f065285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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解答题-证明题
|
困难
(0.15)
名校
【推荐3】已知函数
.
(1)当
时,讨论函数
的单调性.
(2)对任意的
,
,是否存在实数
,使得当
时,
?若存在,请给出证明;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/658ef7daf3b07e58ba5a03d702324077.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be97cd1c7111b654d87d8fbb63b6a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac9eb4f13a6ec140f7050e8d7dde52c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8147934611bcb62afc929bba4ab7fe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8259079109e43759fd7b59c2c7a3de6e.png)
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