解题方法
1 . 已知等差数列
的前
项和为
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4e70b360f988fdbd92300ab22c4613.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://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdec17b8afc28b20e594159db23a9acc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4e70b360f988fdbd92300ab22c4613.png)
您最近一年使用:0次
名校
解题方法
2 . 如图,
是以
为直径的圆
上异于
,
的一点,平面
平面
,
是边长为2的等边三角形,
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/395ad345-a00b-4f75-9a2d-65eb1718226e.png?resizew=162)
(1)求证:
;
(2)过直线
与直线
平行的平面交棱
于点
,线段
上是否存在一点
,使得二面角
的正弦值为
?若存在,求
的值;否则,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbfcae2cecc98e2d6c16dde6d3ec1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/395ad345-a00b-4f75-9a2d-65eb1718226e.png?resizew=162)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfbaf73297240eb116f22489519895a.png)
(2)过直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef523d7e6bcb947369297e2b82d95f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d02ae074c7c2f7dfde8058dfa55ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a037e6af24abbba2635a102d1b861e75.png)
您最近一年使用:0次
2023-02-09更新
|
400次组卷
|
2卷引用:重庆市2022-2023学年高二上学期期末数学试题
3 . 与平面解析几何类似,在空间直角坐标系
中,平面与直线可以用关于
,
,
的三元方程来表示,过点
且一个法向量为
的平面
的方程为
;过点
且一个方向向量为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66715b999d22ac3a633d705ab204c5df.png)
的直线
的方程为
.已知平面
的方程为
,直线
的方程为
,若直线
在平面
内,则经过原点
且与直线
垂直的平面
的方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e336d6ca2cae3d6e6c3810d7e521a4.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/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf95be25d34a7366bf4060d081329c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b094075a5959ef2fe46e32893091f03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b523a8c1993478f6599680dc3b3dc45b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf95be25d34a7366bf4060d081329c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66715b999d22ac3a633d705ab204c5df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c788af35bb31c871f05a6439822f5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933946a0cb62c2c472d18875328e015f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75c0f2ca17ae8da93442d3b16edce720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd80501dc690fd4342b7273ba341e2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
您最近一年使用:0次
4 . 若
构成空间的一个基底,则下列说法中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a07101f8e1039e9578ea09425ad227f.png)
A.存在![]() ![]() |
B.![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-02-09更新
|
636次组卷
|
4卷引用:重庆市2022-2023学年高二上学期期末数学试题
重庆市2022-2023学年高二上学期期末数学试题四川省绵阳市南山中学实验学校2023-2024学年高二上学期期末模拟数学试题(六)(已下线)期末真题必刷易错60题(34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)专题02空间向量基本定理(2个知识点3种题型)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(人教A版2019选修第一册)
解题方法
5 . 设双曲线
,点
,
是双曲线
的左右顶点,点
在双曲线
上.
(1)若
,点
,求双曲线
的方程;
(2)当
异于点
,
时,直线
与
的斜率之积为2,求双曲线
的渐近线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198fe541f7adf150d03ffb7fe3da8df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a15f2579aa50941300a9dd57f56dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/800c5e266b4ad8462a46970f0a232d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46b053f98b1d05a2043e94eeaefea87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
6 . 大衍数列0,2,4,8,12,18,…来源于《乾坤谱》中对易传“大衍之数五十”的推论,主要用于解释中国传统文化中的太极衍生原理.数列中的每一项,都代表太极衍生过程中,曾经经历过的两仪数量总和,是中华传统文化中隐藏着的世界数学史上第一道数列题,其通项公式为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a68eb9c0b4f8befe82f56f6b70a2d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b63eb4d3b80fdbccf1dcf577d3c85c.png)
A.![]() | B.![]() | C.100 | D.101 |
您最近一年使用:0次
7 . 如图,在棱长为的1正方体
中,点
是线段
的中点,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/6d123773-05f7-4227-ba8e-a7cf1d928a17.png?resizew=179)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9cc6d0578ccc0de834539833ec03aeb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/6d123773-05f7-4227-ba8e-a7cf1d928a17.png?resizew=179)
A.1 | B.0 | C.![]() | D.![]() |
您最近一年使用:0次
名校
8 . 已知等差数列
和等比数列
满足
,
,
.
(1)求数列
和
的通项公式;
(2)在数列
中,去掉与数列
相同的项后,将剩下的所有项按原来顺序排列构成一个新数列
,求数列
的前20项和.
![](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/85444874c705666de9488286d3d61dd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d2d988f3ebc1aa5dbb86b3e6073f774.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b422ea651a522bb576e69e4a98673c2.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)在数列
![](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/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
您最近一年使用:0次
2023-02-09更新
|
339次组卷
|
2卷引用:重庆市2022-2023学年高二上学期期末数学试题
解题方法
9 . 已知圆
,直线
与圆
相交于
,
两点,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198381d98cbb47350fa1220a396405a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e35ea5a2f202e7399fcc254f448c796.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/3f4dfec890cdfdda355e19463f3be813.png)
A.2 | B.![]() | C.4 | D.![]() |
您最近一年使用:0次
解题方法
10 . 与椭圆
有公共的焦点且离心率为2的双曲线的标准方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49358e49ae68a92444b5e732a79b28b4.png)
您最近一年使用:0次
2023-02-09更新
|
307次组卷
|
2卷引用:重庆市2022-2023学年高二上学期期末数学试题