1 . 已知
,
.
(1)求
和
的值;
(2)若向量
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c956e042cad51d6180649e94347c415.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f55b8836b41be612a52ca9caf97006.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8f798a9af75a091a8be0b71f2038260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a01fcbb3ddbc0fdd9969bb8b040b41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a40aced493d4f0cabb47969d057e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076559f08d17fb25e82886e791719e52.png)
您最近一年使用:0次
名校
解题方法
2 . 在
中,
,
,
,则点A到边
的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db6a34d668638ea121fd60a570a0ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-06-03更新
|
613次组卷
|
4卷引用:陕西省西安市第一中学2023-2024学年高三下学期4月月考理科数学试题
3 . 已知
,且
.
(1)求
和
的值;
(2)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcbe8b4bcd32e5a64ebfd873f8cbb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba9f29ec502965caee21f333f6389e0d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3bba30868a815d7b85d4afa3ef80c49.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f07029c97c324d32f258f18a96654a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3dd08f5ab225d25ac2907afdaff049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd927b4b5a7875528c1b54aa4bb8b2dd.png)
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解题方法
4 . 已知
且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7df95946cee4b82824d7e1767c38c60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5e14434f10cace8040946534aa1a2bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
A.![]() | B.![]() | C.![]() | D.3 |
您最近一年使用:0次
解题方法
5 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c4a353b42ff971c631a6e782395f4ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604be75720c5872eccf7777a52334db9.png)
A.![]() | B.0 | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-16更新
|
755次组卷
|
2卷引用:2024届内蒙古呼和浩特市高三第二次质量数据监测理数试卷
名校
解题方法
6 . 已知
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b91735c1a4b932faf4a7e4847192da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289b949d801dfa9cce6cf74fe1a77e6a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-14更新
|
811次组卷
|
3卷引用:辽宁省沈阳市2024届高三教学质量监测(三)数学试题
辽宁省沈阳市2024届高三教学质量监测(三)数学试题湖南省岳阳市第一中学2024届高三下学期高考适应性考试数学试题(已下线)期末模拟卷-【好题汇编】备战2023-2024学年高二数学下学期期末真题分类汇编(天津专用)
解题方法
7 . (1)已知
,且
是第二象限的角,求
;
(2)已知
满足
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320c4027d26d5ab85f9280dc951ea5be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cafacae675ecfac01e621f209dc32dd4.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0919929c63ec1c10f1d8ad6887fef1e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
您最近一年使用:0次
名校
8 . 已知
,且
是方程
的两根,下列选项中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e28a96ee1e62b7fbc1fb0257ad0deeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab0e25cb7c556f914e6bc15727ae556.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b54985e70110685d6cab4d9c264e818e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-04-24更新
|
290次组卷
|
3卷引用:江苏省泰州市民兴实验中学2023-2024学年高一下学期期中调研测试数学试题
解题方法
9 . (1)已知
,且
是第二象限角,求
和
.
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf24ce696b370121c4fbc928e3694943.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a215561d0017328105f6412f4e7cd89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
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10 . 在平面直角坐标系
中,以x轴为始边作两个锐角
,
,它们的终边分别与单位圆交于A,B两点.已知A,B的横坐标分别为
,
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b96754743b4a2d1e7b55598af708344.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e673f7e66c2a252da4c77c70d90c8cec.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6802fa592c03ef7c4a8c03f3e8932f8f.png)
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