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解题方法
1 . 已知直线
与曲线
相切于点
,若
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e136e7637543c8ae92c8dcd55b31924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12be206d66e65eb92ef08bad8cd8f71d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf00c83825da9ab6fbf149679722580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcec3a1f0be54de4fbe7e3ddf7eeec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
A.-1 | B.0 | C.![]() | D.![]() |
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2 . 对于函数
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728f2cc68f8ca8ef2faa681785798259.png)
A.函数![]() ![]() |
B.![]() |
C.若方程![]() ![]() |
D.对任意正实数![]() ![]() ![]() ![]() |
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2卷引用:湖北省武汉市2024届高三下学期5月模拟训练试题数学试卷
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解题方法
3 . 函数
的单调递减区间是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cda606e45702a6acd8af816dc263ed89.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 已知函数
.
(1)求函数
的单调区间;
(2)若
恒成立,求实数
的取值集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cff7978e698b20c3b12f2e9d3a00c47b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4卷引用:湖北省部分省级示范高中2023-2024学年高二下学期4月期中测试数学试题
湖北省部分省级示范高中2023-2024学年高二下学期4月期中测试数学试题2024届海南省省直辖县级行政单位琼海市高考模拟预测数学试题安徽省马鞍山市第二中学2023-2024学年高二下学期5月月考数学试题(已下线)第12题 分类讨论法讨论函数的单调性(高二期末每日一题)
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5 . 设函数
的导函数为
的导函数为
的导函数为
.若
,且
,则
为曲线
的拐点.
(1)判断曲线
是否有拐点,并说明理由;
(2)已知函数
,若
为曲线
的一个拐点,求
的单调区间与极值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a00a7220fe1f1699aa32ea0c70a303.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2183b5237f02670ccbe463aaaca37977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca0b72923071c1010a36f17cb3d1168b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca411f2905fd482bd14cb0092e5a6279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea9154699908e7a530d9e04830c9315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43db00e106c7d08a76a7ba71ca5e63d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(1)判断曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c683786f6c924632d9ca47ea243700e7.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/341534f0072c55c40cc00ed25097c2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9bfaad7a770a2bb3930de1ed7444d90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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解题方法
6 . 给出以下三个材料:
①若函数
的导数为
,
的导数叫做
的二阶导数,记作
.类似地,二阶导数
的导数叫做
的三阶导数,记作
,三阶导数
的导数叫做
的四阶导数…,一般地,n-1阶导数的导数叫做
的n阶导数,即
,
;
②若
,定义
;③若函数
在包含
的某个开区间
上具有n阶的导数,那么对于
有
,我们将
称为函数
在点
处的n阶泰勒展开式.例如,
在点
处的n阶泰勒展开式为
.根据以上三段材料,完成下面的题目:
(1)若
,
在点
处的3阶泰勒展开式分别为
,
,求出
,
;
(2)比较(1)中
与
的大小;
(3)证明:
.
①若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10acd6d864583617dd3e71240bf0c857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10acd6d864583617dd3e71240bf0c857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def752070b9e674fdd3c7a632647ab54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def752070b9e674fdd3c7a632647ab54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f71c87ca0e7fa8ad0a24f8d5a2854ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5818ede14d21f6df9ef9c2bfe09286c.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9c55d08be2a0f694e1e948319be61c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f9b92a1988f20c45e8ba3887eeb6b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/849fe9a00128b39200a5defc403fe827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eae1b87c23b45ce5e5e74d5b1d73234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083f05aeb79c34207ddc2b162b8ce49f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369f4888f6214b4472cd16e45139ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78bf48ae91b57fc73e6303a829446a71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea6d4c5149174ffd7f841718d6af7fb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1eac268e854f1d13a101ec88af5afd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea6d4c5149174ffd7f841718d6af7fb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1eac268e854f1d13a101ec88af5afd2.png)
(2)比较(1)中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bffc9c4bf9de4d804885955aff039ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea6d4c5149174ffd7f841718d6af7fb0.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f1656e376d8067d4766f1cc14e56cd.png)
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7 . 已知函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea09d37b495330c0fc9f50af0c46d7df.png)
A.![]() |
B.![]() |
C.点![]() ![]() |
D.直线![]() ![]() |
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8 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28e4867492d6035296db5e28c6ed599.png)
(1)当
时,求
的零点;
(2)若
恰有两个极值点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28e4867492d6035296db5e28c6ed599.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
9 . 已知函数
.
(1)当
时,求函数
的单调区间;
(2)若
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f366b050b2540d96526f1b47bac7f7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6422b9c2e93a91fe9e39ce4d9dabb0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aabfa1a31424c502f92f5cf0ad6ec8a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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10 . 已知函数
在
(
为自然对数的底数)处取得极值.
(1)求实数a的值;
(2)若不等式
恒成立,求k的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef3d214d6b900403767211c010d115eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187c21027ff08411931d32c530b64fd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)求实数a的值;
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e54174b9546b73be70037a14ba95bda3.png)
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2024-06-09更新
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