名校
解题方法
1 . 已知函数的定义域为区间
值域为区间
,若
则称
是
的缩域函数.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976fb7aa0a722e6ef72490a3ea8f0f1f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06423121eb93e8ac0d57822ce0b7ca2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a97eefafdd1eb2631b2beb28db8e0a.png)
(i)当时,
在
单调递减;
(ii)
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解题方法
2 . 如图,对于曲线,存在圆
满足如下条件:
①圆与曲线
有公共点
,且圆心在曲线
凹的一侧;
②圆与曲线
在点
处有相同的切线;
③曲线的导函数在点
处的导数(即曲线
的二阶导数)等于圆
在点
处的二阶导数(已知圆
在点
处的二阶导数等于
);
则称圆为曲线
在
点处的曲率圆,其半径
称为曲率半径.
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
(2)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f42b2a9736c8943106472a7398d2892.png)
(3)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eae1b87c23b45ce5e5e74d5b1d73234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c3c0b12482cc93dee05fbf69350cd99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f455ecf39764829b0bfe0a8675f1a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cbd8e10a553d5607bb8906b2cf64aaf.png)
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名校
3 . 有一种速度叫“中国速度”,“中国速度”正在刷新世界对中国高铁的认知.由于地形等原因,在修建高铁、公路、桥隧等基建中,我们常用曲线的曲率(Curvature)来刻画路线弯曲度.如图所示的光滑曲线
上的曲线段AB,设其弧长为
,曲线
在A,B两点处的切线分别为
,记
的夹角为
,定义
为曲线段
的平均曲率,定义
为曲线
在其上一点
处的曲率.(其中
为
的导函数,
为
的导函数)
,求
;
(2)记圆
上圆心角为
的圆弧的平均曲率为
.
①求
的值;
②设函数
,若方程
有两个不相等的实数根
,证明:
,其中
为自然对数的底数,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/505d83f4d34a8cd385577a6ce93a4b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce7ade05e42f9c1da2f91b2443b2446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce7ade05e42f9c1da2f91b2443b2446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e760f365b9cf2648fcad0c4f451e05f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb01270362284437d082c3a2268c6b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f475f4bce7d71be088fd47d41cbff01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eefffa1689b5a68786b9a5875f12c0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17375498fcd71a15ba331cdbab76fc10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac282e92da3691942a6ba8511de2303.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b20a352df783ea2dbb99141d54c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0217a4e289f6c0474dcb53ce269951fd.png)
(2)记圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825da58f048008f2093a9baf4bdb4a1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f4c693f16c394f189d66a418bd77e59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9e7b6fd9374fc5c34bc1e2df196e5a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76a698f82a67daf3d1881193fe2c820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11204e2fb6e560bf7a4ca26eaebfc526.png)
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4 . 已知
,a为函数
的极值点,直线l过点
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)求
的解析式及单调区间:
(2)证明:直线l与曲线
交于另一点C:
(3)若
,求n.(参考数据:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/564a3336ddeba347978fee32ffb16631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc0021f960dba2b8860d09d9bf26872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ad344f3b6676f6e821cb687ba522268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)证明:直线l与曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/978068ab8189f54a3365be8d73280f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95cffb0685e90e8d603813673a8f0801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/513da43c5b2cbc26d9d53ab32274d3f7.png)
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5 . 对于函数
,若实数
满足
,则称
为
的不动点.已知
,且
的不动点的集合为
.以
和
分别表示集合
中的最小元素和最大元素.
(1)若
,求
的元素个数及
;
(2)当
恰有一个元素时,
的取值集合记为
.
(i)求
;
(ii)若
,数列
满足
,
,集合
,
.求证:
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73bc955d158efde0bdd62d14a60a65e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4687da5aca206a4974ecbac6901e40aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d51777d3fca1ee8f588a6c39190dae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698f45c9ed5bb04924f1037107e76988.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74dec63e6d30a41fcc8972397875bf46.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(ii)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc825a1d8739d18c7f2fcc0d489d4f9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69742762f22dbde311d3cf86ffb00a6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/556c5ed8c16b568bdf3c674e57131770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d12d0bd9afdd4e53ff37f5bfcaa1106c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49377a64a56c87bb4fb916f9ae427c1e.png)
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6 . 在平面直角坐标系中,点在抛物线
上.
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8c63427d85384dea74549213d705149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
①若,求证:
;
②设圆在
,
处的切线的交点为
,求证:直线
过定点.
附:若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6a4781b020b879519321e05c299f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e885d3743ae3d9f0fbd740b75f900083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6a4781b020b879519321e05c299f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/972da921452cc4d0332afe28b11098b4.png)
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解题方法
7 . 记
,若
,满足:对任意
,均有
,则称
为函数
在
上“最接近”直线.已知函数
.
(1)若
,证明:对任意
;
(2)若
,证明:
在
上的“最接近”直线为:
,其中
且为二次方程
的根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdddd6c3c0c0ef2c14c4ea7faf24e99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699c5155f154bef4a75eb53a03f4291e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8908859073a35ccb07b25eb07d468185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccf32da3779e82f7858c1f3c27a90dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc7121983d4ca0e328501601248eceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e207cf62e3a7e282eac4c4a3455bbf9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a1a493b667a18e55b835d2bd03ca4a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a40212b2b62489822575bf09e68ac8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d92e918a76d99d245938076492d72f80.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d2168d7265787aa0eb475f56e3b32f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c4b7add471e5d031b98f7c1fc71f01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155c7f573e898da225390202da1767e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c9db16ab44b10eef1c151383757712.png)
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8 . 已知
,且
,函数
.
(1)记
为数列
的前
项和.证明:当
时,
;
(2)若
,证明:
;
(3)若
有3个零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff69be9f14b645d71fe4547677db36de.png)
(1)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48241aafc046ccde27f7d63ae3018161.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/42c98250092857464fbe6cc0707b89ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b5a00e9328fe28c7f1f81377e05b044.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950581caec90a28b5fa8f1e81bf21d19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7a75bcd70f6b1a6d02dbb92e964e1b.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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9 . 直线族是指具有某种共同性质的直线的全体,例如
表示过点
的直线,直线的包络曲线定义为:直线族中的每一条直线都是该曲线上某点处的切线,且该曲线上的每一点处的切线都是该直线族中的某条直线.
(1)若圆
是直线族
的包络曲线,求
满足的关系式;
(2)若点
不在直线族:
的任意一条直线上,求
的取值范围和直线族
的包络曲线
;
(3)在(2)的条件下,过曲线
上
两点作曲线
的切线
,其交点为
.已知点
,若
三点不共线,探究
是否成立?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4231e4ff37aeb09d25d7cfd3f59cd7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
(1)若圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70feca8eac775ebee7b6d9760e2be6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6560679e73742465c4bf93a386c2400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbec8b46231e412ddce55cc96634e182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1f977d21b370f8ebcae1b4d2f9ac3e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8112f9185c7d48b015d9cd0525616b31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(3)在(2)的条件下,过曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f6dd0159f0fe46dbc3f4e493f8d3e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee0c94e17dd00da31cd38d8d2a0f6ac5.png)
您最近一年使用:0次
2024-03-19更新
|
1812次组卷
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5卷引用:湖南省九校联盟2024届高三下学期第二次联考数学试题
湖南省九校联盟2024届高三下学期第二次联考数学试题广东省广州市执信中学2023-2024学年高二下学期3月月考数学试题(已下线)第6题 设点or设线解决阿基米德三角形问题(压轴大题)(已下线)专题8 考前押题大猜想36-40(已下线)压轴题02圆锥曲线压轴题17题型汇总-4
名校
解题方法
10 . 帕德近似(Pade approximation)是有理函数逼近的一种方法.已知函数
在
处的
阶帕德近似定义为:
,且满足:
,
,
,….又函数
,其中
.
(1)求实数
,
,
的值;
(2)若函数
的图象与
轴交于
,
两点,
,且
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abfb2c1441a7d94cf142af07fa69c062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2158b65e10dbd08c2cb1e265c55f578.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ab02976c65cd2523a875b23afbff91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a9428f7efe344ff19d910626bc7b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c378a9dead44c9e42f438191dc80032d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6b5cdadafa6454202069ffa98507aff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea0753b6f262da7b99776ae7a403d777.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7577b18ba31abfe26b6677f191a2e512.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe622d63eb6d0d9568e4ef85deff47e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b34779af6b2c2b139c32c94104f01088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb0f7f3ff2c266a03d45a368ddacd7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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