解题方法
1 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ca134b42fac02ab09f092a1e4151d60.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ffecb03c47be920254c4ccffa5b222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a97b66e348ff02fc9e7f610d7dfeda5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
2 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa8bb5427c5bbc59549110e46e8fd68.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950581caec90a28b5fa8f1e81bf21d19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a97b66e348ff02fc9e7f610d7dfeda5e.png)
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2023-05-09更新
|
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3卷引用:贵州省毕节市2023届高三诊断性考试(三)数学(理)试题
3 . 已知函数
.
(1)判断
的导函数在
上零点的个数,并说明理由;
(2)证明:当
时,
.
注:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aac7512e70d2bba71cef5558a3973f3.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4921923069c4f38a0af1ff8637e35b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c41df63267cd4a9e7dd9b6af0526ef.png)
注:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77e2ae6e8274a3b0d2b3dd3eb211baa0.png)
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2023-05-09更新
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3卷引用:贵州省部分高中2023届高三模拟考试数学(文)试题
名校
4 . 已知函数
,
.
(1)若过点
作曲线
的切线有且仅有一条,求
的值;
(2)若
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b1d897bf1170f96cac0c36823a512a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ba05858e940df9eb2f054aa578d4f6.png)
(1)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b119d0cf10a948cdc53c1066af0b8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-05-07更新
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3卷引用:贵州省贵阳市2023届高三适应性考试(二)数学(文)试题
贵州省贵阳市2023届高三适应性考试(二)数学(文)试题(已下线)期末押题预测卷01(范围:选择性必修第二册、选择性必修第三册)-【单元测试】2022-2023学年高二数学分层训练AB卷(人教B版2019)河南省周口市恒大中学2023-2024学年高二下学期开学考试数学试题
5 . 已知函数
,
.
(1)若过点
作曲线
的切线有且仅有一条,求实数t的值;
(2)若
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da2463ae790251d9fad7cea0b5bc16eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ba05858e940df9eb2f054aa578d4f6.png)
(1)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b119d0cf10a948cdc53c1066af0b8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
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3卷引用:贵州省贵阳市2023届高三适应性考试(二)数学(理)试题
6 . 已知函数
,
,
.
(1)若曲线
与曲线
在
上有一个公共点P,且存在以P为切点的公共切线,求a的值;
(2)若曲线
与曲线
在
上有两个公共点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd559c9278a955febd5ed9fdbec8c1ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb1e3537cac5767bb48a12cfd09fe4f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d217c7b12e12e5fb67472452518859ec.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7334919736e5ed881f691e4ca738b4ce.png)
(2)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7334919736e5ed881f691e4ca738b4ce.png)
您最近一年使用:0次
解题方法
7 . 若不等式
对任意
恒成立,则实数
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4b9ee5495d5c0d06f0915df9ca9ba3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
8 . 已知函数
.
(1)过点
作曲线
的切线,求切线的方程;
(2)当
时,证明:曲线
的图象与直线
的图象仅有一个交点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf44d2351245858d92a64bd00357408.png)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10b124fd40dc2ae13fd0c05c90db49e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9412eb2931f9f75d199b94a1fe558e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/170785d8eaffa7cb618e52c4580e95fb.png)
您最近一年使用:0次
解题方法
9 . 若不等式
对任意
恒成立,则实数a的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/838f7286fd3a502a870f15b6e28b1c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
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解题方法
10 . 已知函数
.
(1)讨论函数
的单调性;
(2)若
,求证:当
时,
;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb140d3c2c4f67ac39de4b9592e04897.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6174a7497c19a22a2a506bfd568415f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790daaa89fc9d093f45023becf765697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d349bc82a16ecc6e075b36c3376c853.png)
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