1 . 已知函数
.
(1)求曲线
经过点
的切线的方程;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3800798f1fa07f3861be05df7a2168e8.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2180e18416d40abb243bd23984e7aba.png)
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2 . 己知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)若函数
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecc42ea0907a7189af52245b9a7fbf9e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d06e453dc7e768a81fee6bb9447bd84c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b96073735e3a7a87cbf22360afd9fb2.png)
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名校
3 . 已知
,曲线
在
处的切线方程为
.
(1)求
;
(2)证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec5366a5bed23c916f09c2cd1a58a8cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e136e7637543c8ae92c8dcd55b31924.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf1fba67d258d45304cd866545b9747.png)
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2024-03-22更新
|
1512次组卷
|
5卷引用:陕西省安康市高新中学2024届高三模拟考试最后一卷文科数学试题
名校
解题方法
4 . 已知函数
,曲线
在
处的切线方程为
.
(1)求
的解析式;
(2)当
时,求证:
;
(3)若
对任意的
恒成立,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86348478166cdea9c037b5c2ea2aa074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d4f20f4d98141613ff5dd7c37b55c3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457ab5b47bdaea692f22080dd97fb34c.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351a282cf4bde27e62660f9a694ef6df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
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2023-11-11更新
|
708次组卷
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5卷引用:陕西省西安铁一中滨河高级中学2023-2024学年高二上学期第二次月考数学试题
陕西省西安铁一中滨河高级中学2023-2024学年高二上学期第二次月考数学试题湖北省咸宁鲁迅学校2022-2023学年高三上学期10月月考数学试题(已下线)黄金卷04(已下线)黄金卷02(已下线)2024届新高考数学信息卷4
5 . 已知函数
(
为常数)的图象与
轴交于点A,曲线
在点A处的切线斜率为
.
(1)求
的值并求该切线方程;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef96ff936eb415b1f8fe6b9166d8e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b532103b14e4bdb01358975944d13c53.png)
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6 . 已知函数
.
(1)若
,求函数
的图象在
处的切线方程;
(2)若函数
在区间
上存在极大值点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/622e9274b2eae487b73464a264f9449b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/049a156618627899a9c5f5bd863eda38.png)
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2023-12-18更新
|
371次组卷
|
3卷引用:陕西省西安市2024届高三上学期12月(第五次)联考数学试题
7 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)求
在
上的极值点的个数
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f438eca2954862a6a7dc020ffeb1e9a.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6064ab28b1a5aee2637625d8adb0b24.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f9cebd4f20ddb3651b634b59e815fc.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60427758af9c900f0bd646412f3c1d03.png)
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名校
解题方法
8 . “拐点”又称“反曲点”,是曲线上弯曲方向发生改变的点.设
为函数
的导数,若
为
的极值点,则
为曲线
的拐点.
已知曲线C:
.
(1)求C的拐点坐标;
(2)证明:C关于其拐点对称;
(3)设
为C在其拐点处的切线,证明:所有平行于
的直线都与C有且仅有一个公共点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7013f94a41df38d395aaa830559ae31a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2848ae11c9a59b86a60f206f69efcb19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7013f94a41df38d395aaa830559ae31a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7688fe159aac6cd2422b0f834e2b2338.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c087cba6516cfb66c9d346df7e8a24b.png)
已知曲线C:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497260109e600d68e2a84b20d791de06.png)
(1)求C的拐点坐标;
(2)证明:C关于其拐点对称;
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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9 . 2022年北京冬奥会仪式火种台(如图①)以“承天载物”为设计理念,创意灵感来自中国传统青铜礼器——尊(如图②),造型风格与火炬、火种灯和谐一致.仪式火种台采用了尊的曲线造型,基座沉稳,象征“地载万物”.顶部舒展开阔,寓意着迎接纯洁的奥林匹克火种.祥云纹路由下而上渐化为雪花,象征了“双奥之城”的精神传承.红色丝带飘逸飞舞、环绕向上,与火炬设计和谐统一.红银交映的色彩,象征了传统与现代、科技与激情的融合.现建立如图③所示的平面直角坐标系,设图中仪式火种台外观抽象而来的曲线对应的函数表达式为
.
(1)求函数
的图象在点
处的切线方程;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ad93dc19938b18b0a9a7dcfe3a7bf1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/20/74fa53e3-3998-4d0f-8f9e-266b5d590b43.png?resizew=388)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714621c52d929e662febee72b9d68351.png)
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2023-10-30更新
|
126次组卷
|
2卷引用:陕西省榆林市定边县第四中学2024届高三上学期第四次月考数学(文)试题
名校
10 . 已知函数
.
(1)求证:曲线
在点
处的切线恒过定点.
(2)若对任意的
,有
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dad94f4ae9d23daeedd4ac3d5b7f8cf.png)
(1)求证:曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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