解题方法
1 . 我们知道,函数
的图象关于原点成中心对称图形的充要条件是函数
为奇函数,有同学发现可以将其推广为:函数
的图象关于点
成中心对称图形的充要条件是函数
为奇函数
(1)设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ffe13a3112acf545ee550cab301cb4.png)
(ⅰ)求函数
图象的对称中心,并求
的值;
(ⅱ)若函数
与函数
图象有两个交点A,B,若点C坐标为
,求
的值.
(2)类比上述推广结论,写出“函数
的图象关于y轴成轴对称图形的充要条件是函数
为偶函数”的一个推广结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec550c01b4f075f22ab67f5e55ed5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d0969cb7acbeaa05a101a385348a00.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ffe13a3112acf545ee550cab301cb4.png)
(ⅰ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e340812abce08d103abaef92c4170a0.png)
(ⅱ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e3b0bc86a229b4c0188aa425105449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8166a0f3557834aa091eb4bd0b9ffc99.png)
(2)类比上述推广结论,写出“函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
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名校
2 . 设函数
的定义域为R,且满足
,
,当
时,
,则( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0acb74208dcbe73fd8cbd89bf86bd69c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f651773486c3ad967187165ede1e7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcac1e85463a3177f487d896b3d1d24c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7ed99a74e126a05cb520f19c094020.png)
A.![]() |
B.![]() |
C.![]() ![]() |
D.方程![]() ![]() |
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4卷引用:福建省福州市华侨中学2024届高三上学期期中数学试题
3 . 在棱长为
的正方体
中,
、
分别为
、
的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
A.异面直线![]() ![]() ![]() |
B.过点![]() ![]() ![]() ![]() ![]() |
C.当三棱锥![]() ![]() ![]() ![]() |
D.点![]() ![]() ![]() ![]() ![]() ![]() |
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解题方法
4 . 如图,正六边形ABCDEF的边长为4.已知双曲线
的焦点分别为A,D,两条渐近线分别为直线BE,CF.
的方程;
(2)过点A的直线l与
交于P,Q两点,
,若点M满足
,证明:点M在一条定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)过点A的直线l与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4850179a08e94f3e21fc9f0699f3860e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6e56e12c9e4563e1a71d2d3d60eeb09.png)
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5 . 已知函数
,其中
、
.
(1)若
,讨论函数
的单调性;
(2)已知
、
是函数
的两个零点,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fececf7210492883eb2ac90c72050b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知
![](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/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f103d938e548dfbf56ab600623b3e20d.png)
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3卷引用:福建省福州市八县(市)协作校2022-2023学年高二下学期期末联考数学试题
福建省福州市八县(市)协作校2022-2023学年高二下学期期末联考数学试题(已下线)高二下学期期末复习解答题压轴题二十二大题型专练(2)【人教A版(2019)】专题07导数及其应用(第三部分)-高二下学期名校期末好题汇编
名校
解题方法
6 . 已知函数
存在唯一的极值点,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/835e3661214c55d11cbfea0e65e79ab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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7 . 已知
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f029344c36864586e1c4e96f953fd46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eeb46996ff103cb9ff0eeed47cc8703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689bc570a55bb7c4cc4918e44f54965b.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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3卷引用:福建省福州市八县(市)协作校2022-2023学年高二下学期期末联考数学试题
福建省福州市八县(市)协作校2022-2023学年高二下学期期末联考数学试题(已下线)第三章 利用导数比较大小 专题一 同构具体函数比较大小 微点3 构造含三角函数的组合函数比较大小【人教A版(2019)】专题08导数及其应用(第四部分)-高二下学期名校期末好题汇编
8 . 已知函数
,
.
(1)讨论函数
的单调性;
(2)当
时,若存在直线
与
,
的图象都相切,求
的取值范围及相应
的条数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc8ca8ea93e01e9e0f0c3e4aa5425448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/834ccd3af1e1fc5c79c415445388c667.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa662f0273f0921c1fa4727f632395.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解题方法
9 . 已知函数
,其中
.
(1)若
在
上恒成立,求
的取值范围;
(2)证明:
,有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c3f055edd37f6d913d795e43a22952.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c7572463225bb3b65cb371f4496440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e81b4aac721bcd4a49593b48a28a8f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31b447d75e2fc72052232e68d5c36101.png)
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解题方法
10 . 已知椭圆
的左、右焦点分别为
,
,A,B分别是C的右、上顶点,且
,D是C上一点,
周长的最大值为8.
(1)求C的方程;
(2)C的弦
过
,直线
,
分别交直线
于M,N两点,P是线段
的中点,证明:以
为直径的圆过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d04d94b89c1e6ca3c3cad3e4f7884d37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5004949a4915f923c9b86aa0c5a51aca.png)
(1)求C的方程;
(2)C的弦
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a089c207e39a24d0d82aa853ac2bbb8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
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