解题方法
1 . 已知
,
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbdf6e63162117021853147abf14d3b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/243288f8315e8ea94bda2ec3fec6a984.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3884b343d76a26b4b85b48987d7064.png)
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解题方法
2 . 已知向量
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38293d6108afb51d477500012113e9cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60fceab7c01dffd8aa26f1641b8447cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5fd9b3c31d55a84c95ee0cc3def2b75.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 已知角
的顶点为坐标原点O,始边与x轴的正半轴重合,终边经过点
.
(1)求
的值;
(2)若角
满足
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f5eaa3f65e3d6b687290e36fec4a658.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e80c2c72eed7998a1961c49908d73a00.png)
(2)若角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f562afcecd97ee21f734b851978df95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacde1c42151734fdc60f3001b590de.png)
您最近一年使用:0次
2022-04-22更新
|
261次组卷
|
2卷引用:湖北省部分普通高中联合体2021-2022学年高一下学期期中联考数学试题
4 . 已知第四象限角
、
满足
,
,则
的值为( )
![](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/25f8783429be686df75afcd56e847dfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c306d0a6bb34b2125e5acb10d3208dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacde1c42151734fdc60f3001b590de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
5 . 已知
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b1d9195c0fa74b89f976a64106a9ab.png)
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb3ad754f2b8d21a09cb93ea9569e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3825d43fa2ae435fce184e2cfe2c3d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02eb9b2e04ea79deeb3a0a1ed335d237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b1d9195c0fa74b89f976a64106a9ab.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ff8ffbc70d832aa9fc7bcbdae46e30.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c52220314b8ff75a1290fe99af6d50.png)
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解题方法
6 . 在
中,角A,B,C所对的边分别为a,b,c,若
,
,
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e15cbd7c42d7b15d7ba8d2b28ab8df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70ac28300251806a2f96c7bbd442eda1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4da2213e11e0580629413fca080768.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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解题方法
7 . 已知
,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73157c521af3ee47040bbe824958acb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f12ae40e0aed70f95b61ada937d1c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5653b4620620d07b555e4a6c9ff91f6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-04-19更新
|
545次组卷
|
2卷引用:湖北省鄂西北六校(宜城一中等)2021-2022学年高一下学期期中联考数学试题
解题方法
8 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09fb3ff4684b9fee1cf90423b76b524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636df4f2dc3bee2903d5822dfabce355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
您最近一年使用:0次
9 . (1)已知
均为锐角,
,
.求
的值;
(2)已知
,若
,求实数
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f8783429be686df75afcd56e847dfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf8329abf5b975181458c661286904bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacde1c42151734fdc60f3001b590de.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6febd3680f0a8437129065d0ee55c45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/263a60b3e56454a04b82511dca925905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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10 . 已知向量
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac075691407fc7a2eb3fcd3dc372d2d.png)
(1)求
及![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c250094127e2b3c878d68213b60407.png)
(2)若
的最小值为
,求正实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0619985c616f370844f55d32163ae556.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac075691407fc7a2eb3fcd3dc372d2d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0fe4d834e8eaca89ceaf9c64cdabd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c250094127e2b3c878d68213b60407.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cb38e9bb209ba8d79cf25109815d718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e8b4bbd2f9912adfc9864c0e1e76a9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf5909a2b109d048bd7c7a0377a769f.png)
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