已知函数
.
(1)若曲线
在点
处的切线的斜率小于1,求
的取值范围.
(2)若整数k使得
对
恒成立,求整数k的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a790cf29a927b09225e453ab3b0a83dd.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/79b752f0f189e5d8666daea73e145dff.png)
(2)若整数k使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149ab622039c613c775a3e33df938265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
2024高三下·全国·专题练习 查看更多[1]
(已下线)专题5 导数与不等式恒成立问题【讲】
更新时间:2024-05-26 09:02:51
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解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知函数
.
(1)求曲线
在点
处的切线方程;
(2)求与直线
平行,且与曲线
相切的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a8f9abfdc4bf31a15cd39846f68bf83.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea9824af71c9da5db5a00ec06063024.png)
(2)求与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e6287a7de53abae85f195a9fb668ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
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适中
(0.65)
解题方法
【推荐2】已知函数
,曲线
在点
处的切线为
:
,若
时,
有极值.
(1)求
的值;
(2)求
在
上的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b269dce1ae3396d2afc82a91dc6f97ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46712fd43148fe540ca857a7ae4c2015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d649324f96a812ff24110ba12b50cf9d.png)
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解答题-证明题
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适中
(0.65)
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解题方法
【推荐1】已知函数
,
,其中
.
(1)证明:当
时,
;当
时,
;
(2)用
表示
中的最大值,记
.是否存在实数a,对任意的
,
恒成立.若存在,求出
,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ec08ec41b4c6610befef88efdd1cd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/446318e79ee96fef166db246c3b2c799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
(2)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1bfb9487f824ff9fd2a1a281f8d62f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f66fd3129db024daf48dfd8c4673a9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94198db0631951a6455f03128b557a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题
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适中
(0.65)
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解题方法
【推荐2】设函数
(
为自然对数的底数).
(1)当
时,求
的最大值;
(2)当
时,
恒成立,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0d9b3782c3e017f96301db30e3e62d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813b9aa31af28f99d21fc0dc0c95475c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbb98cb1318f9269236d5a92b4dd544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐3】设函数
.
(1)当
时,求函数
的单调区间.
(2)求函数
的极值.
(3)若
时,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c07123ac8a795469c83fb5619c2363b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](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