已知实数
,设函数
.
(1)求函数
的单调区间;
(2)若
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfcea74d330997ee9c92a223c0335851.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155f498ac69e24b3203f5aa789da687f.png)
2024高三·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【练】
更新时间:2024-05-25 21:41:00
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解答题-问答题
|
较难
(0.4)
【推荐1】已知函数
.
(1)若
在
处取得极值,求
的单调区间;
(2)若函数
有1个零点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25ba6741e88ff79310d3467dfa43bf8a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac9645fc10b3174bb389188df27e19a3.png)
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较难
(0.4)
名校
【推荐2】已知函数
.
(1)若
,求
单调区间;
(2)当
,
在
内是否存在极值,若存在求该极值的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c2fc0773f7731f025d452f7e7b61178.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a790bb286c3831c8d65750b71de015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae6d2677f670a0972af0bf7202ff5b6d.png)
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解答题-问答题
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较难
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解题方法
【推荐3】已知函数
,
,
,令
.
(1)
,研究函数
的单调性;
(2)若关于
的不等式
恒成立,求整数
的最小值;
(3)
,正实数
,
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b90c5d5a2ae54f6186ab53d39083fdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa0b6d7f1f1157896b16bff2743a1b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71607511fdd4faa9e832345ceb2a817d.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8493a0cd10d3d0399173c04163740a38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebd9808d4b8a27adbce8d12d5b8b191b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0db2c49919467a2e14540f2aabd05cb.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/7d7d8b3ce057e41a32a410da445e8f34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b3ae40a75d61530a74c0cfbf92f20c.png)
您最近一年使用:0次
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(0.4)
名校
解题方法
【推荐1】已知函数
,其中
.
(1)若函数
在
上单调递增,求a的取值范围;
(2)若函数
存在两个极值点
,
,
时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd5390482e4ed10943c47fb132f2ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37558b80449f4a8942da5f32954661e5.png)
(2)若函数
![](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/ffd888afdcfdb3e91a157d50f65e915e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5bb23eb1a048db7d5edad9d870b1b93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450398974b1561ca801e102e16df6789.png)
您最近一年使用:0次
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较难
(0.4)
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【推荐2】已知函数
.
(1)当
时,求
在
处的切线方程;
(2)当
时,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83334f682bf1e3f513ad3a5ff17239e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
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(0.4)
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解题方法
【推荐1】设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e3727959c931222f1f0df95128e411.png)
(1)证明:
;
(2)若
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e3727959c931222f1f0df95128e411.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a2b9f08554b5bb8169baa7b78dc433.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45b2d6632bde696ad390d147e6c6a41a.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2】已知函数
(
,
为自然对数的底数),
是
的导数.
(1)当
时,求证:
;
(2)是否存在整数
,使得
对一切
恒成立?若存在,求出
的最大值,并证明你的结论;若不存在,也请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc62bb186214f638ae7eb5600a90b16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)是否存在整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f91b7c3887ad1e4cc1d71a6c04645806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.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
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较难
(0.4)
名校
【推荐1】已知函数.
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70317d5b4128ca9fdd6573787d1db993.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)讨论函数
的单调性;
(2)证明:当
时,对任意
,恒有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec9e2c3801a518f5740778bd3504d736.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fe2115d883d13561e28006d3f6143b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dfcd6c43ed75270a4b79039601baa7d.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐3】已知函数
.
(1)讨论函数
的单调性;
(2)设
,对任意给定的
,方程
在
有两个不同的实数根,求实数
的取值范围.(其中
R,
为自然对数的底数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc321e8d61ff9790eea004c3a0d7d5fd.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1431bba865e80cc1343977ab8f37302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987bf7909bbae4c8bfeb6adce422da74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09964025ec6154c24d78230ad5ef68d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c616175977f8983ee3239b4bff5f1ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb71310ec267ea2c2fc0ccaeb2343d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66367f83e841caba04d29fceaa5cf4f7.png)
您最近一年使用:0次