解题方法
1 . 若数列
共有
项,对任意
都有
(
为常数,且
),则称数列
是
关于
的一个积对称数列.已知数列
是
关于
的一个积对称数列.
(1)若
,
,
,求
的值;
(2)已知数列
是公差为
的等差数列,
,若
,
,求
和
的值;
(3)若数列
是各项均为正整数的单调递增数列,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a2ba64bfc61ec78a65944fb8247a937.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c11950e41ac5d26b212a972cc58a3d6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c876f7c64d581afb4d1bb6063c48f2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe8fabd6b7f3547c18062c8781dbd45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
(2)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90bfe21c96489cb30c544d49ddb4c1c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b13bd7807908887b854773a4901da0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42dc22436b2a4edf3d6e15e1e5a15343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de06482cf6ed8f6c8bc13de27e736fc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70c95a5133241ba22e1c805480c1b02a.png)
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解题方法
2 . 已知函数
.
(1)求函数
的单调区间;
(2)设函数
,若
恒成立,求
的最大值;
(3)已知
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058ea5d3d704ce71357315200e50d662.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1680f61dd0509a6872654a2b925f25e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c613670e031de8f39429f5ab1a0a074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cbfafb947f021724d72e07b70029378.png)
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2023-07-09更新
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2卷引用:福建省南平市2022-2023学年高二下学期期末考试数学试题
3 . 已知函数
满足
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7aa67149d2853b41ffe8e03a0369845.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e91770acb583f05c3ead767d247be034.png)
A.![]() |
B.![]() |
C.若方程![]() ![]() |
D.若函数![]() ![]() ![]() ![]() |
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解题方法
4 . 已知函数
,
.
(1)讨论
的极值;
(2)若
的极小值为3,且
,
,
,
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8984b8da734b538225709a1eec785e88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138fcdee616479d91ba743b65ad69fd6.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673207f6b77b8192d25463d071737b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7493c0fcdc634aa03efb6be277e23769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d7efbc6c2f72683bd03414ed448fce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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5 . 在椭圆
中,其所有外切矩形的顶点在一个定圆
上,称此圆为该椭圆的蒙日圆.该圆由法国数学家
Monge(1746-1818)最先发现.若椭圆
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50b199e5c20e24fc9a622df9deeabe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c20e0c9191c8a73cd34b3c7702bd243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ddaa027ce520c1c035399c3674bf39.png)
A.椭圆![]() |
B.椭圆![]() |
C.点![]() ![]() ![]() ![]() ![]() ![]() |
D.若椭圆![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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5卷引用:福建省南平市浦城第一中学2023-2024学年高二上学期期中数学试题
6 . 如图,在平面直角坐标系中的一系列格点
,其中
且
.记
,如
记为
,
记为
,
记为
,以此类推;设数列
的前
项和为
.则( )
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973665552580608/2974889747890176/STEM/82bcfdf9-875e-4e6a-982d-ea9ce7d7c2d8.png?resizew=265)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f70db67d96a5bf6d5c6b93ed64952d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/543e8aafc8dd888978be27a4c35e0468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc63e6bf84555c2d7d52203312ed5aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/796d2645ff431d92de68c06bc7fce212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e92b8041e98e4f435acdbeb983efbe46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b2280277323db7183727f887dcd6e9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd5359c8fdc022d7044ffb6fdb291666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfe828b8c4fb7db9ea0aa1ad863cf2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96ee9507ea1fa2e31a62a4fe53f6af81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973665552580608/2974889747890176/STEM/82bcfdf9-875e-4e6a-982d-ea9ce7d7c2d8.png?resizew=265)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 已知函数
.
(1)讨论函数
的单调性;
(2)若
,求证:函数
有两个零点
,
且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1097a42fd2b9a226ce71cf729e7b2c4.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31d4cc7c7d68ebe9546fb0e65628d548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a9cca22ca1bdb28e0566de55b3c5e40.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/5f8b08addfe2955f09d69b744ad856b8.png)
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3卷引用:福建省南平市2022届高三毕业班第三次质量检测数学试题
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解题方法
8 . 在棱长为
的正方体
中,
,
分别为
,
的中点,点
在正方体表面上运动,且满足
,点
轨迹的长度是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32df475a4f2164dcecfe1bd57fa4d51e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/2022/3/21/2940811938390016/2941624094318592/STEM/3951c5736f404dbd94d13dcddef347c5.png?resizew=242)
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9卷引用:福建省南平第一中学2023-2024学年高二上学期第三次月考数学试卷
福建省南平第一中学2023-2024学年高二上学期第三次月考数学试卷江苏省南京市第一中学2022届高三下学期2月期初数学试题山东省齐鲁2021-2022学年3月份高一阶段性质量检测试卷A(已下线)临考押题卷04-2022年高考数学临考押题卷(新高考卷)吉林省白城市洮南市第一中学2022-2023学年高二上学期期中数学试题江西省新余市第一中学2022-2023学年高二下学期第一次段考数学试题(已下线)第07讲 空间向量的应用 (1)(已下线)1.4.1 用空间向量研究直线、平面的位置关系(重难点突破)-【冲刺满分】2023-2024学年高二数学重难点突破+分层训练同步精讲练(人教A版2019选择性必修第一册)广东省东莞市东华高级中学、东华松山湖高级中学2023-2024学年高二上学期10月联考数学试题
名校
解题方法
9 . 已知椭圆
的长轴长为
,点
在
上.
(1)求
的方程;
(2)设
的上顶点为A,右顶点为B,直线
与
平行,且与
交于
,
两点,
,点
为
的右焦点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22a458f87656de69a5e2328d19ac640a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/498b881ce7ab7877bfee29ff4c2f5d26.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/a7f20bf927d76ca5c9679922cc89f489.png)
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5卷引用:福建省南平市2022届高三联考数学试题
福建省南平市2022届高三联考数学试题福建省金太阳2022届高三10月联考数学试题(已下线)9.6 三定问题及最值(精讲)-【一隅三反】2022年高考数学一轮复习(新高考地区专用)(已下线)第十一章 圆锥曲线专练13—椭圆大题(范围最值问题)-2022届高三数学一轮复习黑龙江省大庆铁人中学2021-2022学年高三上学期期中考试理科数学试题
名校
10 . 定义在
上的函数
的导函数为
,且
恒成立,则必有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bdfed8d6862125dc1fecfce0322a750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef66dc08a31369f0607c5c747d98cbaa.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6卷引用:福建省南平市2022届高三联考数学试题
福建省南平市2022届高三联考数学试题福建省金太阳2022届高三10月联考数学试题辽宁省葫芦岛市协作校2021-2022学年高三上学期第一次考试数学试题福建省莆田第二十五中学2022届高三10月月考数学试题(已下线)专题03 利用导数解不等式与不等式恒成立问题(练)--第一篇 热点、难点突破篇-《2022年高考数学二轮复习讲练测(新高考·全国卷)》(已下线)第三章 利用导数比较大小 专题二 同构抽象函数比较大小 微点3 构造抽象函数比较大小综合训练