名校
解题方法
1 . 已知A,B,C为平面内三点,点A(0,1),
.若平面内存在唯一点
使
,且
,则点B的坐标可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bdd6bf83abea75fe152cc791c6a5146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf0d139c9810361b4971904a943856b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532106975e41f0ba906233b4aca359d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92d7d9ee5c71767238b7b7cccfbb6bb2.png)
A.(1,0) | B.(1,-1) |
C.(-1,-1) | D.(-1,2) |
您最近一年使用:0次
解题方法
2 . 以O为原点,
所在的直线为x轴,建立直角坐标系.设
,点F的坐标为
,
,点G的坐标为
.
(1)求
关于t的函数
的表达式,判断函数
的单调性(不需要证明);
(2)设
的面积
,若以O为中心,F为焦点的椭圆经过点G,求当
取得最小值时椭圆的方程;
(3)在(2)的条件下,若点P的坐标为
,C、D是椭圆上的两点,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08493c1e001d85731cb4863ec38857fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b062ab7377b2a9b3e4c4df0d3297cf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fffad27b195220d9b31db743cd44eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94f384cef0393af2e36599c51b90548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/992493990b269fd99c5393052813f6a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2709ca478fb15ea08e8aa55328eae8e6.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d9fbbd668087e4811900a20e470d9bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa441e9ba1f9b8e145e0324244e5f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4301c9b8d06efd83eea4dfce15ec507.png)
(3)在(2)的条件下,若点P的坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc2957bcb77692d884e496df41499bca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b759a069dc3559f5f23c1dfda55cd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
名校
解题方法
3 . 如图,已知
,
,
,直线
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/d24df8f1-3e2d-4ea5-ac81-d7b48ced6ead.png?resizew=143)
(1)求直线l经过的定点坐标;
(2)若直线l等分
的面积,求直线l的方程;
(3)若
,点E、F分别在线段BC和AC上,上
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1dbb7313d3364656e5daef5ff5f219f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87baa7770b063bfe7cd8f8fce57d9181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1db6a960cda734e2185a736b7506d8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b037e6b696e6bbbe3bdfeb540553d9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/d24df8f1-3e2d-4ea5-ac81-d7b48ced6ead.png?resizew=143)
(1)求直线l经过的定点坐标;
(2)若直线l等分
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16bf7dae3f8a49fe804fa2deba23b37d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c45ab82dfb318518afeb5df15e48696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5514a14f65f15ecf4078f201403df438.png)
您最近一年使用:0次
2021-11-19更新
|
406次组卷
|
4卷引用:上海市徐汇区西南位育中学2019-2020学年高二上学期期中数学试题
上海市徐汇区西南位育中学2019-2020学年高二上学期期中数学试题(已下线)附加篇:直线与方程(向量法)(已下线)第1章 直线与方程 单元综合检测(难点)上海市青浦高级中学2022-2023学年高二上学期9月月考数学试题
名校
解题方法
4 . 已知
的周期
,将f(x)的图象向右平移
个单位长度得到
的图象.记
与
在y轴左侧的交点依次为
,
……
,在y轴右侧的交点依次为
,
……
,O为坐标原点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ec7893fce943b2d565df19cfa79dabe.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f77d94823f7084256ddc659f94323cff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7825eb57ef8a7f2021fa1859a914c4e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.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/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ec7893fce943b2d565df19cfa79dabe.png)
您最近一年使用:0次
5 . 在平面直角坐标系中三点A,B,C满足
,
,D,E分别是线段BC,AC上的点,满足
,
,AD与BE的交点为G.
(1)求
的余弦值;
(2)求向量
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5721e3048f5dd39a47ac97f34d480a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b77cf88b670aa004bb4dfd93a14e1599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d78524f98b01fa1dadfd277939665b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/121e9b7080514f5a33858d72e28d60a2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61123f663c231f0536d31dfa071375d6.png)
(2)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538c1a9e933bc1e29d785eeda9cd1abc.png)
您最近一年使用:0次
6 . 直线
分别与直线
和
交于
,
两点,
与
交于点
,
为坐标原点,当
到
的距离最大时,
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ffe059ba40701eeceaabf96b38a0d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d74a7594d973d14d558604f88067b051.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e3d542652849859c1187033b59b52ad.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/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634f94115d7f2c784732e51975bd7dcd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-08-06更新
|
433次组卷
|
4卷引用:四川省眉山市彭山区第一中学2021-2022学年高二上学期入学考试数学试题
名校
解题方法
7 . 已知集合
,
,
,
,
,记事件
与
所成角为锐角,求事件
的概率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49972f77c4c3b89116f02cbaba7f9089.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d090863f77c81ac25c42fc1c7904a655.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ed6451a30f130363d5afd36836098c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f44b482719577dde6fa146e44aa0c448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/299aa69ccc73d4180d665a7cf0975f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
名校
解题方法
8 . 下列命题是真命题的是( )
A.若两个非零向量![]() ![]() ![]() ![]() |
B.已知向量![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.直线![]() ![]() |
您最近一年使用:0次
9 . 已知
为坐标原点,点
,动点
满足
,
是直线
上的点,给出下列四个结论:
①点
的轨迹是圆;
②
的最大值为3;
③
的最小值为1;
④
.
其中正确结论的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d295a4cc3a58f9f38ee98337313c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44064f29246946a4527f9f06e1fc2e0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbba4eaea11a24409e3a22ea70ae468.png)
①点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/269359a60574dc0a9999ab360ce36a49.png)
其中正确结论的个数是( )
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
名校
解题方法
10 . 在直角坐标系
中,过动点
的直线与直线
垂直,垂足为
,点
满足
.
(1)求点
的轨迹方程;
(2)直线
与(1)中的轨迹交于
两点,如果线段
的中点为
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5421a28dc3675ae20190d6090793246e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1a231bd98ac40c802f8f47b2009380.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c832f2474efe89961ef41e884da7660c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2021-08-31更新
|
372次组卷
|
3卷引用:广东省普宁市2019-2020学年高二上学期期中数学试题