名校
解题方法
1 . 设坐标平面上全部向量集合为
,已知由
到
的对应关系
由
确定,其中
.
(1)当
取值范围变化时,
是否变化?试证明你的结论;
(2)若
,
,且
与
垂直,求向量
,
的夹角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/223f9f4381029df3c73950c112ba61ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e944b756fb196f66e6737c7699c729.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec099aaacdffc0410c59bd922cbca33.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f8412635de6b389976732e69aae2b5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa3ca9b8fa289681d083a475e5e9844b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8093252a4c68b4554c2db213caf93b17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75172bec256051e44253fc4ed7da1992.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e163480714acc9dae5005cac65d217d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37564ec4e9e92485f1769e8ffaac31d.png)
您最近一年使用:0次
名校
解题方法
2 . 为方便师生行动,我校正实施翔宇楼电梯加装工程.我们借此构造了以下模型:已知正四棱柱
,它抽象自翔宇楼南侧楼心花园所占据的空间,设
,
,O为底面ABCD的中心,正四棱柱
与正四棱柱
分别代表电梯井与电梯厢,设
,M为棱
的中点,N,K分别为棱
,
上的点,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/0b462e61-384a-4f3f-84fa-ed7f0a03c599.png?resizew=243)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
平面
;
(2)求直线
与平面
所成角的正弦值;
(3)“你站在桥上看风景,看风景的人在楼上看你.明月装饰了你的窗子,你装饰了别人的梦.”卞之琳诗句中的情景其实正在我们的生活中反复上演,上官琐艾同学站在楼心花园的中心(O点),她正目送着倚立在电梯厢一角的欧阳南德同学,假定上官同学的目光聚焦于棱OO2的中点I,此时,电梯厢中欧阳同学的目光正徘徊在位于N点的数学办公室与位于K点的数学实验室,当电梯厢向上启动时,在这时空里便诞生了由点O与移动着的平面INK所勾勒的动人风景.现在,请作为“正在看风景的人”的你完成以下问题:当电梯厢自底部(平面OECF与平面ABCD重合)运行至顶端(平面
与平面
重合)的过程中,点O到平面INK距离的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1300c053fde2be0861a4d128645dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eaba7d7d6f2f3d6d4a2fe85d3c427f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38158de5a7c1ae8bc7a8ec9e1b90cf15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ca71c2f5005f86b706a3fc8bae97017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1dd2d3ebf5f4e9128f5a2f18018866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64fb289ca6025309e93e3c20ac0f04b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e023f80e4146cf44fd01935d0680f3e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5594a4b5f0e842213df907dbb25c25cb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/0b462e61-384a-4f3f-84fa-ed7f0a03c599.png?resizew=243)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f3477c7e6f5e94eac65dda58544d41.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc526324e78e4d9226d1b537f27845a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f3477c7e6f5e94eac65dda58544d41.png)
(3)“你站在桥上看风景,看风景的人在楼上看你.明月装饰了你的窗子,你装饰了别人的梦.”卞之琳诗句中的情景其实正在我们的生活中反复上演,上官琐艾同学站在楼心花园的中心(O点),她正目送着倚立在电梯厢一角的欧阳南德同学,假定上官同学的目光聚焦于棱OO2的中点I,此时,电梯厢中欧阳同学的目光正徘徊在位于N点的数学办公室与位于K点的数学实验室,当电梯厢向上启动时,在这时空里便诞生了由点O与移动着的平面INK所勾勒的动人风景.现在,请作为“正在看风景的人”的你完成以下问题:当电梯厢自底部(平面OECF与平面ABCD重合)运行至顶端(平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9f13896a66e307f01afe9ff43a82f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
您最近一年使用:0次
2022-11-06更新
|
357次组卷
|
4卷引用:天津市南开中学2022-2023学年高二上学期阶段性质量检测(一)数学试题
天津市南开中学2022-2023学年高二上学期阶段性质量检测(一)数学试题1.4空间向量的应用(已下线)期中真题必刷压轴60题(18个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)(已下线)第六章 突破立体几何创新问题 专题二 融合科技、社会热点 微点3 融合科技、社会热点等现代文化的立体几何和问题综合训练【培优版】
名校
解题方法
3 . 在苏州博物馆有一类典型建筑八角亭,既美观又利于采光,其中一角如图所示,为多面体
,
,
,
,
底面
,四边形
是边长为2的正方形且平行于底面,
,
,
的中点分别为
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2407d4b99e51c6a8d33cc32972549f9.png)
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/1b33c98e-854e-4684-9ba8-f1a7ce79dff8.png?resizew=453)
(1)证明:
平面
;
(2)求平面
与平面
夹角的余弦值;
(3)一束光从玻璃窗面
上点
射入恰经过点
(假设此时光经过玻璃为直射),求这束光在玻璃窗
上的入射角的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb94145069d895e289f871c9deb403a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7bd02e0adeae92ba9526261b1baf797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/542b5bc10c7341c04c22244f3ec16e6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03733d1465d041a6d6da32bf91a7cff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8f3392a792c219bf3f365281ad9bb70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15dc61d5de97b5a40be925b278ae494c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1859959fdb4c5edd8056893f94a10a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2407d4b99e51c6a8d33cc32972549f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8930099c42933f19d18446c471738a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad1a56baf43ffdf67bc8460856e31fec.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/1b33c98e-854e-4684-9ba8-f1a7ce79dff8.png?resizew=453)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c536d18163bd4bc3d7573e206a8d538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31228c7fd89c98d6235ad993d51d413.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31228c7fd89c98d6235ad993d51d413.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
(3)一束光从玻璃窗面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31228c7fd89c98d6235ad993d51d413.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31228c7fd89c98d6235ad993d51d413.png)
您最近一年使用:0次
2023-03-28更新
|
982次组卷
|
3卷引用:天津市河东区2023届高三一模数学试题
4 . (1)如图,平行四边形
中,对角线
与
交于
点,
为平面内任意一点. 求证:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/22/322ac58b-6ace-4b65-b19a-550448e8f281.png?resizew=207)
(ⅰ)
;
(ⅱ)
;
(2)矩形
中,
为平面内任意一点.求证:
;
(3)在平面上,
,
,
.若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/22/322ac58b-6ace-4b65-b19a-550448e8f281.png?resizew=207)
(ⅰ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62f7667168e00e009966f8772298b797.png)
(ⅱ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c58014648a1d8377acfdf244ee07e400.png)
(2)矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca8ea92bb22eff6ace44566715890c99.png)
(3)在平面上,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61a20f65d50ced816b828d472d9f0ac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d8db0b0d865a43ff70c7dbbd7d2b978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b15fdbdcfd47d81f23245bd02d9346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/779d07a49f3439c69cb9e76bad784fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e578668ad5d0ad2b240ac6906c66f2c.png)
您最近一年使用:0次
真题
解题方法
5 . 如图,以椭圆
的中心O为圆心,分别以a和b为半径作大圆和小圆.过椭圆右焦点
作垂直于x轴的直线交大圆于第一象限内的点A.连结
交小圆于点B.设直线
是小圆的切线.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/de47bcec-2815-4e0e-9a2b-92ce47ec6e1c.png?resizew=190)
(1)证明
,并求直线
与y轴的交点M的坐标;
(2)设直线
交椭圆于P、Q两点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98a9a660910d4efa74ccdcf120273993.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/de47bcec-2815-4e0e-9a2b-92ce47ec6e1c.png?resizew=190)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/502491f4e48e1d74ca8cc709840c30b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e194a24c02cf7c0b8a92b56731188f6.png)
您最近一年使用:0次
名校
解题方法
6 . 如图所示的几何体
中,平面
平面
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18715690e2c5169cfafb5ab0f0fc124c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
是
上的点(不与端点重合),
为
上的点,
为
的中点.
为
的中点,
.
(i)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1460aa3d83df61f6c411b34412135451.png)
平面
;
(ii)求点
到平面
的距离.
(2)若平面
与平面
所成角(锐角)的余弦值为
,试确定点
在
上的位置.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/905e950cc8fc6f92f31c62c784cbbc26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba2404fc0ab55eca94d8973226e9558f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18715690e2c5169cfafb5ab0f0fc124c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e61314614ff8854de14bda1631bc8b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed8e8f8b75e657565fe628d869b0bde3.png)
(i)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1460aa3d83df61f6c411b34412135451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af29254fe60a392c249c5791279e9c8.png)
(ii)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af29254fe60a392c249c5791279e9c8.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af29254fe60a392c249c5791279e9c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
您最近一年使用:0次
2022-01-10更新
|
448次组卷
|
2卷引用:天津市新华中学2024届高三统练(十一)数学试题
解题方法
7 . 已知
和
均为等差数列,
,
,
,记
,
,…,
(n=1,2,3,…),其中
,
,
,
表示
,
,
,
这
个数中最大的数.
(1)计算
,
,
,猜想数列
的通项公式并证明;
(2)设数列
的前n项和为
,若
对任意
恒成立,求偶数m的值.
![](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/ebaf2a2590bb84d646957f913d78f6dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd8f08a2e3a40cc2fb680104133df13a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4602c763b6896b76ec80c73cbb6b0126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075255ba5f02900e250ff61f7491dc5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f40db3e0b43d3e92b807827c1612f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d294754430977273da149a8ea6c345da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a202bda83f2640744337ee18ad45dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07096af3b99fd1cb11c31f19a2c6408e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a47d46ba3cddd9ba7e79b8d0369592.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/07096af3b99fd1cb11c31f19a2c6408e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/637f94c79ddadc15f305bed8adc45733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7936359df4c926b72b48c6fdae55f12d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76f79be89b8c6227b68eded6b675546.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db84454f051d418a4904fa423ab8b304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0909e967ae83425ea3b319bc25b3ad34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bd32114b6a51df290934bce11b6e255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97769855336d73371930df1f187875e.png)
您最近一年使用:0次
2022-04-08更新
|
879次组卷
|
3卷引用:天津市津衡高级中学2022届高三下学期4月月考数学试题
名校
8 . 已知
.
(1)若函数
,求
的单调区间;
(2)若过点
能作函数
的两条切线,求实数
的取值范围;
(3)设
,且
,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059339aaa184f16da14ba10eb320fccf.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de2f7af12c71dbdc8d9502198f39d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad29801f799532ee7dda9658c30e373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd0ae451f9ba273fbd6823cbf2aeec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/537e917a958a5266abfb2334d0a33ee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/858dc316908539c2f0a2bd12b264ba2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fbb626c8bbc1c705d44d7ed8eacd370.png)
您最近一年使用:0次
2021-09-10更新
|
689次组卷
|
2卷引用:天津市南开中学2023届高三统练24数学试题
9 . 已知
是各项都为整数的等比数列,
是等差数列,
,
,
.
(Ⅰ)求
和
的通项公式;
(Ⅱ)设
表示数列
的前
项乘积,即
,
.
(ⅰ)求
;
(ⅱ)若数列
的前
项和为
,且
,求证:
.
![](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/ebaf2a2590bb84d646957f913d78f6dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0b575b74af96b739ba6d8fa8088d8cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/769fe52ac96348d3b12d23d06d702595.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d643a5fb1c6254e1ee355872d2afc7e7.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/32f81c7dbe91ed0a67c9b98a84fb384c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
(ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d643a5fb1c6254e1ee355872d2afc7e7.png)
(ⅱ)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a33f48bf5f6b79b601f69552c892cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de23c44e267c2bc99efc56bec3a8dac.png)
您最近一年使用:0次
名校
解题方法
10 . 已知函数
.
(1)
,求函数
的最大值;
(2)若
恒成立,求
的取值集合;
(3)令
,过点
作曲线
的两条切线,若两切点横坐标互为倒数,求证点
一定在第一象限内.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c013a7b9d9eba700eb2c7dca0e9e2b2.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4e6eed28e95d743071cf09483bc573c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e89249f9a184300e0e278b194cf51a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4133958c09fdd82cda8838c9cf46ccda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2021-05-06更新
|
1230次组卷
|
4卷引用:天津市武清区杨村第一中学2021届高三下学期高考热身训练(二)数学试题