1 . 已知椭圆
长轴的两顶点为
、
,左右焦点分别为
、
,焦距为
且
,过
且垂直于
轴的直线被椭圆
截得的线段长为3.
(1)求椭圆
的方程;
(2)在双曲线
上取点
(异于顶点),直线
与椭圆
交于点
,若直线
、
、
、
的斜率分别为
、
、
、
.试证明:
为定值;
(3)在椭圆
外的抛物线
:
上取一点
,
、
的斜率分别为
、
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8dcc91c2ffb5571eaf944c34f5e8ffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8242f3a6a00149f6211bfce2dfc5c4ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)在双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7e7f2b2cd50abbac1d9bc6c3c1e37ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0009063fe00277645aff1be6e32471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf434334b09cc0fdd4e86e84e6ceb00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3307e11f7e6896e32aa510bbed949ac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f80f88bf259eab62e63d64281cf2635.png)
(3)在椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f4faed99e8f7100584d50eedea8c1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4e9ee390c8211b27fc8f9bcf6af934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f401d4347ed61fda302f54108085ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b618bfdc8bfc3cd25a7449e5a4d5790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219a2ef656dd79ab44cdd98875db5c0e.png)
您最近一年使用:0次
2020-09-03更新
|
684次组卷
|
6卷引用:上海市闵行区七宝中学2016届高三下学期第二次三模(理)数学试题
名校
2 . 已知函数
(
,
)的周期为
,图象的一个对称中心为
将函数
图象上的所有点的横坐标伸长为原来的2倍(纵坐标不变),再将所有图象向右平移
个单位长度后得到函数
的图象.
(1)求函数
与
的解析式;
(2)当
,求实数
与正整数
,使
在
恰有2019个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e4892080a918aa2127c09e8d4c28c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a297d9b18487cde772be5c7d2676b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0210d1c03f8d237737a007dd23297fe8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/836b0f673c92ea0450a4cf224e529753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d093a1e0298353258a13053f94144b.png)
您最近一年使用:0次
2019-11-08更新
|
700次组卷
|
3卷引用:上海市闵行区七宝中学2016-2017学年高三上学期期中数学试题
名校
3 . 已知
,
为两非零有理数列(即对任意的
,
,
均为有理数),
为一无理数列(即对任意的
,
为无理数).
(1)已知
,并且
对任意的
恒成立,试求
的通项公式.
(2)若
为有理数列,试证明:对任意的
,
恒成立的充要条件为
.
(3)已知
,
,对任意的
,
恒成立,试计算
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6af1644737a2948f30308a168ff07e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1602c6064af12eed3fd1291f8272d93c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b783cf91e34e692ce8e171f0965cb53f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6af1644737a2948f30308a168ff07e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50a4b1e4f8b1d044300df7ef8205c31.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2391202d5ea5ed1802af734a78583961.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d36e322a05765061155210df4176aea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b783cf91e34e692ce8e171f0965cb53f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c404f6958b9613226e380b16dba8f5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/244d2564c2bff56c566e7990f570d549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8dfd310df0a4f42cf64dc1bed85f816.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fe6fdf0d6443ef6e5f34d9741a0759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25260e98fe082f4ec2b6273aa17e2d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbc42581b47d7665015dc5c22922bfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
您最近一年使用:0次
2020-09-06更新
|
649次组卷
|
10卷引用:2016届上海市闵行区七宝中学高三下学期适应性考试(三模)(理)数学试题
2016届上海市闵行区七宝中学高三下学期适应性考试(三模)(理)数学试题2016届上海市七宝中学高三模拟理科数学试卷2016届上海市七宝中学高三模拟考试数学(理)试卷上海市实验学校2017届高三上学期第四次月考数学试题2019年上海市建平中学高三三模数学试题上海市建平中学2019届高三下学期5月月考数学试题(已下线)重难点04 三角函数与解三角形-2021年高考数学【热点·重点·难点】专练(上海专用)上海市浦东新区2021届高三三模数学试题上海市大同中学2021届高三三模数学试题(已下线)考向10 三角恒等变换-备战2022年高考数学一轮复习考点微专题(上海专用)
名校
4 . 为了配合今年上海迪斯尼乐园工作,某单位设计了统计人数的数学模型
,以
表示第
个时刻进入园区的人数;以
表示第
个时刻离开园区的人数.设定以15分钟为一个计算单位,上午9点15分作为第1个计算人数单位,即
;9点30分作为第2个计算单位,即
;依次类推,把一天内从上午9点到晚上8点15分分成45个计算单位(最后结果四舍五入,精确到整数).
(1)试计算当天14点至15点这1小时内进入园区的游客人数
、离开园区的游客人数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/379fb8e8e486a899bf790723ba55b75a.png)
各为多少?
(2)从13点45分(即
)开始,有游客离开园区,请你求出这之后的园区内游客总人数最多的时刻,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69d307ec71820b6536453fbdb5069da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10b071847b182b67a932fef3639bacda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eb9010c1be1f63b8668b8f0e69c9650.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc2d3df37e73a8abea815f37dbb3fff5.png)
(1)试计算当天14点至15点这1小时内进入园区的游客人数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef13288f94497fc2819eeace921f8f1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/379fb8e8e486a899bf790723ba55b75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/487535791065cc6da22407a01b6fa9c2.png)
(2)从13点45分(即
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c3a498017612d64611d7f2dfb3a03e.png)
您最近一年使用:0次
2020-01-16更新
|
197次组卷
|
2卷引用:2016届上海市闵行区高三4月质量调研(二模)(理)数学试题
5 . 在平面直角坐标系
中,动点
到定点
的距离与
到定直线
的距离的比为
,动点
的轨迹记为
.
(1)求轨迹
的方程;
(2)若点
在轨迹
上运动,点
在圆
上运动,且总有
,
求
的取值范围;
(3)过点
的动直线
交轨迹
于
两点,试问:在此坐标平面上是否存在一个定点
,使得无论
如何转动,以
为直径的圆恒过点
?若存在,求出点
的坐标.若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caa04eb7cae40ce5e89da590b9cdb75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd24f3c4bc9f9a75d4b28630bb630d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求轨迹
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c169040d6404d5767a39ce4a344e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdc9cbc378d429d33b88be628c31b17.png)
求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
(3)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1057967056e1994028ae57ee40c989e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/0b68df477b3ee45ac0f725db00d465a1.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/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
您最近一年使用:0次
解题方法
6 . 如图,在四棱锥
中,底面是边长为2的正方形,
⊥底面
,
为
的中点,
与平面
所成的角为
.
![](https://img.xkw.com/dksih/QBM/2020/2/28/2408951150436352/2409506465693696/STEM/c71c0d67c55844e3b9a25ea5bfbe50b7.png?resizew=220)
(1)求证:
;
(2)求异面直线
与
所成的角的大小(结果用反三角函数表示);
(3)若直线
、
与平面
所成角分别为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/717d026dd0029aab76fd410d88f67bd8.png)
![](https://img.xkw.com/dksih/QBM/2020/2/28/2408951150436352/2409506465693696/STEM/c71c0d67c55844e3b9a25ea5bfbe50b7.png?resizew=220)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/746f70c9993f04a5037c53daf3d1af00.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdd64aaccd976873d5c241352be7e09a.png)
您最近一年使用:0次
7 . 定义变换
将平面内的点
变换到平面内的点
;若曲线
经变换
后得到曲线
,曲线
经变换
后得到曲线
,…,依次类推,曲线
经变换
后得到曲线
,当
时,记曲线
与
、
轴正半轴的交点为
和
,某同学研究后认为曲线
具有如下性质:①对任意的
,曲线
都关于原点对称;②对任意的
,曲线
恒过点
;③对任意的
,曲线
均在矩形
(含边界)的内部,其中
的坐标为
;④记矩形
的面积为
,则
;其中所有正确结论的序号是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d819bfb7479b5873f7fa2541697658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82d5063a37b8e3e88c7a87267054d407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a7959e5d5a687783adf38d2004fd95e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc7f40c3bfed77da57b41da844fec1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc31dcdb99754fc452ff2b92a2fb8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc31dcdb99754fc452ff2b92a2fb8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b25286f6029da66ce5270aacd05184f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51b7bb4deadcb449f0112b7836f59f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc31dcdb99754fc452ff2b92a2fb8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc31dcdb99754fc452ff2b92a2fb8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc31dcdb99754fc452ff2b92a2fb8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc31dcdb99754fc452ff2b92a2fb8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd459e842089790c031e4e13695f2ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d4e8502106802f1485c3b0f28f2664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cac997fb53e58edb11f87edd8c6099b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd459e842089790c031e4e13695f2ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a63801fa4cfc5d7eb49e443de8be44d.png)
您最近一年使用:0次
名校
解题方法
8 . 已知函数
,
.
(1)求函数
的零点;
(2)若直线
:
(
,
,
为常数)与
的图像交于不同的两点
、
,与
的图像交于不同的两点
、
,求证:
;
(3)求函数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69b76612264b62b3e66947e71707ded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f24aab8780eba1befac8d7c33efb941.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b785a2cd2e5dbee80d59c87183f20181.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f6e1f67dc15c3cf135a78af95c70fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](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/09f86f37ec8e15846bd731ab4fcdbacd.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/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd1af14f9a53cb0f07d5d28dceba30aa.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09d9df587e95d42bac3f4106d95642b.png)
您最近一年使用:0次
9 . 已知p,q是两个不相等的正整数,且
,则
等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699e55c211a6e091cc7a9d2cde3ed981.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc4b68c9c80551209e87c18bddbb7f26.png)
您最近一年使用:0次
名校
解题方法
10 . (1)已知a,b,x均为正数,且
,求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3085495517cf7b77cc88e513fa874cc.png)
(2)已知a,b,x均为正数,且
,对真分数
,给出类似上小题的结论,并予以证明
(3)证明:
中,
,(可直接应用第(1)(2)小题的结论)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3085495517cf7b77cc88e513fa874cc.png)
(2)已知a,b,x均为正数,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2122e3f1e76a635e58e4d54aa594c552.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89521e1106f61e66c762b5eb66bb1a3.png)
您最近一年使用:0次