解题方法
1 . 已知函数
.
(1)求曲线
在
处的切线方程;
(2)①当
时,
恒成立,求
的取值范围;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15847ac152b461667485a04bce241619.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3c6ba8fc97a5177e41aee1260079ad.png)
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解题方法
2 . 已知函数
.
(1)求
在点
处的切线方程;
(2)判断函数
在区间
上的单调性,并说明理由;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4990c2604dc3430bf0010b1cad02fd5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec7a126e69669d0374f88122823818d.png)
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2022-11-21更新
|
450次组卷
|
2卷引用:北京市第一六五中学2023届高三上学期期中教学目标检测数学试题
名校
3 . 已知
,
.
(1)求
在
处的切线方程;
(2)当
时,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c7fa5272b8787e7fc9e48268d764f89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f5af8af898110b6db6ab8f6cfb60a1e.png)
您最近一年使用:0次
4 . 已知函数
.
(1)求曲线
在
处的切线方程;
(2)当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4fdc487d4cf65c82a40b7944024f5a6.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636289ad84b4a3a51095dd32ca201f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac0091fa7b5fdbffbefc27ec6e68510a.png)
您最近一年使用:0次
2022-11-20更新
|
462次组卷
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4卷引用:中学生标椎学术能力诊断性测试2022-2023学高三上学期11月测试理科数学试题
5 . 已知函数
,
.
(1)若直线
与曲线
和
都相切,求实数
的值;
(2)设函数
,若函数
在
上有三个不同的零点
,
,
,且
,求证:
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c1184d6ad1561983ff8f46fd89bfb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bee434ff4fd518929665cf357d166ff.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73fff204cd3dff03d9ee7f63f33e0b17.png)
![](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/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28eb47bf11a209a6521e16bbed6cbdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f786a5701dc1a8a015e8843c3360151b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.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/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c520eb8fcc167698440cdee316134c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95123c0c6f46730b8395f5f131d1e4a1.png)
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2022-11-20更新
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2卷引用:中学生标准学术能力诊断性测试2022-2023学年高三上学期11月测试文科数学试题
6 . 已知函数
.
(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/ac30b1937be89c3e9a8e955a11ccf51e.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6607d48e36a60702397064a330a0fcd0.png)
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7 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)证明:当
时,
有且只有一个零点;
(3)若
在区间
各恰有一个零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d2345aac6817314e2f7c3d786b79f1.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62be04c7b2b2744afea6e0c28ecc67f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022高三·全国·专题练习
解题方法
8 . 已知:如图,抛物线
,
为其焦点,
是过抛物线上一点
的切线,
是直线
上的两点(不同于点
),直线
平行于
轴.求证:
.(入射角等于反射角)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf92a1ba410263d4f68b7e0432b19aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a7e6acfc23e0a01aa8e6c25277dcfec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7600d2cfbdc6146db96cc545706004f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/674891f113da82f8e978411ed0c7423b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/422935d85056bc2fa6d4d50d034f62eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7600d2cfbdc6146db96cc545706004f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd084b94e9aa409d88e808752f3fc44.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/17/4b7074b1-b0f6-4eb1-8a13-295785b551c3.png?resizew=196)
您最近一年使用:0次
9 . 已知函数
,
;
,
.
(1)求函数
在区间
上的极值;
(2)判断曲线
与曲线
有几条公切线并给予证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc873fc03e6e4d3c4ba02f8b1147b20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8016fa68266039752c3c32d8f1a3b77e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa662f0273f0921c1fa4727f632395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(2)判断曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
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2022-07-14更新
|
659次组卷
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4卷引用:广东省潮州市2021-2022学年高二下学期期末数学试题
名校
10 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f5ac0cc79784a0a164941e068460a7d.png)
(1)若f(x)的图象在
处的切线恰好也是g(x)图象的切线,求实数a的值:
(2)当
时,求证:对于区间[1,2]上的任意两个不相等的实数
,
,都有
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f5ac0cc79784a0a164941e068460a7d.png)
(1)若f(x)的图象在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7152aea5d046953a8c931571be7c529.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b4fe1b1f1b3ba8ea6e8eea89d961015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b12a4eecd249473a831d0ee472470240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9565876bc50bceb63e5793c8c67a9032.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797bc1e103d7345ba5e5320a3023e87e.png)
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2022-10-19更新
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2卷引用:四川省成都七中万达学校2022-2023学年高三上学期9月月考文科数学试题