名校
1 . 已知单位向量
、
夹角为60°,向量
,
,函数
,函数
.
(1)求出
并解方程
;
(2)设
,
,证明
,求出
;
(3)设数列
中,
,
,
,求
的取值范围,使
对任意
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8315ec34019d719771152be2252106e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf39ca3294f5520518dd4f1c0609876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2795c23d9ae250f97272fe45647b619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c68ae32a33b25a7da4a22375aeb97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5acd92c11b40a6a7df2862ee780fd19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d178399b685d411fc08169d8e4dd102.png)
(1)求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907e4ba6d5f2eea68442def1911957fe.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998d1117b68d345ad988e86d1ec7724b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acec5abbaf06572719eb3e438cbee96f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7268ee120ea28a987f9e0eebf859f067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84323e71222a3dd2ddf73bc9c654c01b.png)
(3)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8cc56056a35396d9b94bee47a5b17c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c378b096c02a762afd59dfb0a3574e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17bc84f50a043f6bfb4b8e35460a1fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
您最近一年使用:0次
名校
2 . 已知数列
的前
项和为
,
,
,设
.
(1)证明数列
是等比数列;
(2)数列
满足
,设
,求
.
![](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://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f3dd930d591a7debf35234d2763c67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac8e1d60f036093acd1e8fb476226b0.png)
(1)证明数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa7e395adb05e07d5114cb10fda14a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165e448460f1941cff392c4ddc576879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2f710b0e6ccca316852bf3a94f68135.png)
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2019-10-25更新
|
728次组卷
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2卷引用:广东省中山市第一中学2019-2020学年高二上学期10月月考数学试题
3 . 如图,四棱锥
中,底面 ABCD为矩形,侧面为正三角形,且平面
平面
E 为 PD 中点,AD=2.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/2723d66a-2dfa-45a1-bf48-e2122f297d55.png?resizew=193)
(1)证明平面AEC丄平面PCD;
(2)若二面角
的平面角
满足
,求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efe11ff2c080a2346c3a0f156ebaabd2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/2723d66a-2dfa-45a1-bf48-e2122f297d55.png?resizew=193)
(1)证明平面AEC丄平面PCD;
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75eb1402f4270b68723f61f9e6375d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4009bdd7f95dbfc97141b7c8b836dfa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
您最近一年使用:0次
2019-08-02更新
|
887次组卷
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8卷引用:湖南师范大学附属中学2018届高三上学期月考试卷(三)(11月)数学理试题
湖南师范大学附属中学2018届高三上学期月考试卷(三)(11月)数学理试题辽宁省实验中学东戴河分校2019-2020学年高二上学期12月月考数学试卷湖北省沙市中学、郧阳中学、恩施高中、随州二中2019-2020学年高二上学期第三次月考数学试题辽宁省实验中学、大连八中、大连二十四中、鞍山一中、东北育才学校2017-2018学年高二上学期期末考试数学(理)试题河北省武邑中学2018届高三上学期第五次调研考试数学(理)试题福建省闽侯第六中学2017-2018学年高二上学期期末考试数学(理)试题湖南省五市十校2018-2019学年高二下学期期末联考数学(理)试题1湖南省五市十校2018-2019学年高二下学期期末联考数学(理)试题2
名校
4 . 设函数
.
(1)求函数
的单调区间及极值;
(2)若函数
在
上有唯一零点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d46826f8a5ca2d24c4bc05bdc0a6375.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/620a6c0dd68965305f065ddd135266b3.png)
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2019-08-02更新
|
1479次组卷
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4卷引用:黑龙江省实验中学2020届高三上学期第一次月考数学(理)试题
名校
5 . 圆O:x2+y2=9上的动点P在x轴、y轴上的射影分别是P1,P2,点M满足
.
(1)求点M的轨迹C的方程;
(2)点A(0,1),B(0,﹣3),过点B的直线与轨迹C交于点S,N,且直线AS、AN的斜率kAS,kAN存在,求证:kAS•kAN为常数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d00285706446f20e0955adb5f0de582.png)
(1)求点M的轨迹C的方程;
(2)点A(0,1),B(0,﹣3),过点B的直线与轨迹C交于点S,N,且直线AS、AN的斜率kAS,kAN存在,求证:kAS•kAN为常数.
您最近一年使用:0次
2019-05-30更新
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1657次组卷
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5卷引用:山东省烟台市莱州市第一中学2020-2021学年高二上学期12月月考数学试题
山东省烟台市莱州市第一中学2020-2021学年高二上学期12月月考数学试题【市级联考】湖南省益阳市2019届高三上学期期末考试数学(理)试题【市级联考】山东省泰安市教科研中心2019届高三考前密卷数学(理)试题(已下线)专题06 解析几何中的定点、定值问题(第五篇)-备战2020年高考数学大题精做之解答题题型全覆盖广东省深圳市宝安中学2019-2020学年高二上学期期中数学试题
名校
解题方法
6 . 已知
.
(Ⅰ)当
时,求不等式
的解集;
(Ⅱ)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/087a78cc3f8a4f6506499b9d167cddbe.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dd456469aaa6dafb1e275183d217435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b331267caee5ea3a36a0c6d36e0c83a.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f00f997ae12c30f551adb834e1d7ef8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0175d126d91c262b3b6fc060280e081.png)
您最近一年使用:0次
2019-07-09更新
|
1092次组卷
|
3卷引用:辽宁省丹东市凤城市第一中学2019-2020学年高三上学期12月月考数学(理)试题
名校
7 . 对于数列
:
、
、
、
、
,若不改变
,仅改变
、
、
、
中部分项的符号(可以都不改变),得到的新数列
称为数列
的一个生成数列,如仅改变数列
、
、
、
、
的第二、三项的符号,可以得到一个生成数列:
、
、
、
、
.已知数列
为数列
的生成数列,
为数列
的前
项和.
(1)写出
的所有可能的值;
(2)若生成数列
的通项公式为
,求
;
(3)用数学归纳法证明:对于给定的
,
的所有可能值组成的集合为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/621604766ddd141c86e37da5e71aef26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b56e44e4f0424a2b7a45567120a2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b56e44e4f0424a2b7a45567120a2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/621604766ddd141c86e37da5e71aef26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d43796f47cacd92c3b7a7961f5ea0d06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
(2)若生成数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed0cb100443c6a86b711e5dbd14b7ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(3)用数学归纳法证明:对于给定的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557e6a7b7d6691963acdf1d902e61332.png)
您最近一年使用:0次
2019-12-07更新
|
573次组卷
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2卷引用:上海市南洋模范中学2021-2022学年高二上学期12月月考数学试题
名校
8 . 在
中,
、
、
分别为角
、
、
的对边,若
.
(1)判断
的形状,并证明;
(2)若
,
,
为满足题设条件的所有
中线段
上任意一点(可与端点重合),求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ec876d59cc33b33faf0c31abe6430.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b939d7f28b83c87639ae58f306aee021.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff72ed78e49ce4888bbfd8d0a8d3e476.png)
您最近一年使用:0次
2019-12-06更新
|
1027次组卷
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2卷引用:重庆市第一中学2018-2019学年高一下学期4月月考数学试题
名校
9 . 已知函数
.
(1)若曲线
在点
处的切线与直线
垂直,求
的值及函数
的单调区间;
(2)若
的极大值和极小值分别为
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a40e851803eae6aa645665f5b3e34d0b.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c204834608f1a8fba15747210dd7c5af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e39f5cd58d39abbd9ae5817d66d5d52.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e35584e586f3cc76e958ee7361a8ad60.png)
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2019-10-17更新
|
541次组卷
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3卷引用:湖北省武汉市49中等部分重点中学2019-2020学年高三10月月考数学试题
10 . (1)解不等式
;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e197de68e7d35c22dfc573c6be677cd6.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ccd4773b971075d3cb7c42cdaac08c5.png)
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2019-04-15更新
|
1337次组卷
|
4卷引用:广东省中山市桂山中学2023-2024学年高二下学期第一次段考检测数学试题
广东省中山市桂山中学2023-2024学年高二下学期第一次段考检测数学试题(已下线)2019年4月17日 《每日一题》理科选修2-3—— 排列(已下线)6.2.1 排列及排列数(精讲)-2020-2021学年高二数学一隅三反系列(人教A版2019选择性必修第三册)苏教版(2019) 选修第二册 限时训练 第13练 排列(1)