1 . 设抛物线
的焦点为
,过焦点的直线与抛物线
交于
两点,抛物线在
两点切线交于点
,当直线
垂直
轴时,
面积为
.
(1)求抛物线的方程;
(2)若
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ea1be9b9b6bb12afa7e1ce703d1603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
(1)求抛物线的方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4756a9ebb3abe8ffa376ffa148cbadb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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解题方法
2 . 已知函数
,
.
(1)若曲线
在
处的切线的方程为
,求实数a的值.
(2)若在
上存在一点
,使得
成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c982eeb9b2a3d426a7aa70a0d3a91c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c067e6d907f6c0fdfa9be70bbc027595.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df49341b57eb107f416a014903ce25a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e26ab10960166b61fa81d1008343197.png)
(2)若在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d47e734b17201fe992be7775714e9558.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe1ce16cc4131f3fc0741536ad7fedb0.png)
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3 .
,则b的最大值是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7d2405f861fdbc30f910e1d48623c1d.png)
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4 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)求函数
的单调区间;
(3)若函数
在
上有且仅有
个零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f27e242e405cc9cd23b92198e4bbd37.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)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf613d5ed2a4b75ee70638f28fd9f44f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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5 . 已知函数
.
(1)当
时,求过点
且与曲线
相切的直线的方程;
(2)若方程
有两个不相等的实根,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b8de889918c859f5f0e305f2c54244.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2c84e7b41a841a230ed5f8a42309aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b1d897bf1170f96cac0c36823a512a.png)
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6 . 设函数
,其中
,曲线
在
处的切线方程为
.
(1)求函数
的解析式;
(2)若
的图像恒在
图像的上方,求m的取值范围;
(3)讨论关于x的方程
根的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204bebc36e4903265980e8c2d14f19b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ec89bb290fe3ec4ab5c796f82f00941.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a9b769d70cb6f29e965c800921c8ea.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(3)讨论关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8bfb563f79688d136e0cb958b5153c.png)
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名校
7 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)若函数
在
上的最大值在区间
内,求整数m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d1fd994df940d5e72e1ffb5af064c18.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01db9cbf6f3078a185951b272af6cc34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4da5b8e19e0aaf01b401e4f239b3d9a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88ea43f1e36cc084b861b7f5ea0c12.png)
您最近一年使用:0次
2023-02-26更新
|
877次组卷
|
6卷引用:河南省名师联盟2023届高三下学期2月质量检测(联考)文科数学试题
名校
8 . 已知函数
,其中
.
(1)若
,求曲线
在点
处的切线方程;
(2)已知
在区间
上存在唯一的极小值点.
(ⅰ)求实数
的取值范围;
(ⅱ)记
在区间
上的极小值为
,讨论函数
的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ff7ed8d5d66e23a1eb22126b25bbd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)若
![](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)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71163f419555f2ed76075c8ff659fbfc.png)
(ⅰ)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ⅱ)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71163f419555f2ed76075c8ff659fbfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
您最近一年使用:0次
9 . 已知函数
,
.
(1)若直线
是
的切线,函数
总存在
,使得
,求
的取值范围;
(2)设
,若
恰有三个不等实根,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2e1efd42048dac36fb54435c5501627.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a881dacf19faca158a80c56eb5998f.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2676b13b400dee3094fb11b4cae7f7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c09654e7d7f60502c41e633e03f8ae1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a94da700b871b8462d3652f69abd7d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e53e35ff01eb30e5e8c1b19a8e69a65a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10254afbe4847e6edb3e4c5515a5a521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23164f24af47a96da50886e79894df73.png)
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2023-02-24更新
|
874次组卷
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3卷引用:山东省日照市2023届高三一模考试数学试题
名校
10 . 已知函数
.
(1)当
时,求
在点
处的切线方程;
(2)当
时,
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e744e4787ddb46bea2be05c2b0865b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5099c85b730ef39b6dd2b0b8a99bae3b.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
您最近一年使用:0次
2023-02-23更新
|
625次组卷
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3卷引用:河南省普高联考2022-2023学年高三下学期测评(四)理科数学试题