解题方法
1 . 已知函数
(
,
)在点
处的切线方程为
.
(1)求函数
的极值;
(2)设
(
),若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae435e8177f5269c671a5b7de47ae85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1d8d5cea065075fe50706abe3ae802.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/335afda0a0f5fe4b78d257977828b110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85187c85826beeca12137805293fff77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2 . 已知函数
,
的定义域为
.
(1)求
的极值点;
(2)讨论
的单调性;
(3)若函数
存在唯一极小值点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270679f83d2f89307b9b7080cf81203a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d9ee1df512f2ebc9e6cff9953b805b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df17d1b404651bf6dbc97b519d452e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
3 . 已知函数
.
(1)求函数
的极值;
(2)设函数
的导函数为
,若
(
),证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a54ae06f45443a86a386b8d10e1d2b3.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad1f38ab4116e36ab4441b28b55fbe4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f057bf79e066c9e6421f4efb06566a5.png)
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名校
4 . 已知
(其中
为自然对数的底数).
(1)当
时,求曲线
在点
处的切线方程;
(2)当
时,判断
是否存在极值,并说明理由;
(3)若对任意实数
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04d21bd20b782e1b1a030b04d8394fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66367f83e841caba04d29fceaa5cf4f7.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/68c6b6a11760d0724b0b60e55970e229.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若对任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9baa33e282d8b0b45c68b268ac610044.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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5 . 已知函数
,
且
.
(1)若函数
在
处取得极值,求曲线
在点
处的切线方程
(2)讨论函数
的单调性和极值情况
(3)在曲线
上至少存在一个整数
,使得它对应的点在x轴的上方,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/472c41493e276c217824b87dec17ab71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d32d1a5a0732c7e4af737555e44ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d06e33d079ac1649ee5eea8f61de7cf.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(3)在曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10738d78a1fe89f9786a50fe3bfcba3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c4ebc6ae3d1985c33e60eb530cc0fb.png)
您最近一年使用:0次
名校
6 . 已知函数
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1e5c6966e450f059f63ffe924382f6.png)
A.函数![]() |
B.函数![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若方程![]() ![]() |
您最近一年使用:0次
2024-06-08更新
|
436次组卷
|
3卷引用:四川省内江市第二中学2023-2024学年高二下学期期中考试数学试题
7 . 已知函数
.
(1)当
时,求
的极值;
(2)若
恒成立,求实数
的取值范围;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b48e39514c9e9909e94fc5745355cfa.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58196b9e63ec00aa1119052b6de6ae12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6274961e116aff1637d4bc3ac4944ce5.png)
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2024-05-25更新
|
761次组卷
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5卷引用:四川省成都市郫都区2024届高三上学期阶段检测(三)文科数学试卷
名校
8 . 已知函数
,下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86161d12df385eb4cfec8a8a38277fc2.png)
A.函数的极小值为![]() |
B.函数![]() ![]() ![]() |
C.![]() |
D.若曲线![]() ![]() ![]() ![]() |
您最近一年使用:0次
解题方法
9 . 已知函数
,
(1)求
的极值;
(2)设
,若对
且
,都有
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47afd5f0891656e9ae3ed04020d9ade5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdcfd96b2d7c899156c512b10c72416f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d02d6c50325772f2f5c5308f47d4d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7206478ec34ee9a40293281ed689a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
10 . 已知函数
,其中
.
(1)当
时,求
的极值;
(2)讨论当
时函数
的单调性;
(3)若函数
有两个不同的零点
、
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971822ac7125bb76d66139083584263f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)讨论当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8145758226601870f0366210b150e047.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
您最近一年使用:0次
2024-04-03更新
|
1158次组卷
|
4卷引用:四川省南充市西充中学2023-2024学年高二下学期期中考试数学试题