解题方法
1 . 已知
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/005fa32731cd8290847a115f78b42efa.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bc052a11cf1a01445992672dde2836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0277154fc2f398a18762f17bb394d18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e4fc7489911b0da3cc5d7194d9c6a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01503f722796f7420a08537cdb351f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/005fa32731cd8290847a115f78b42efa.png)
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解题方法
2 . 已知点A的坐标为
,将OA绕坐标原点O顺时针旋转
至
,则点
的坐标是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad42625f296d2a4b65180e2f7b776beb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48fce10478485ef01d2318fc3465bb4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
3 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8807d7a6387cd566aa94f0e1732f4676.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4692265f62b15253c2b0e3bb9f1a0d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8807d7a6387cd566aa94f0e1732f4676.png)
您最近一年使用:0次
2022-03-31更新
|
324次组卷
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3卷引用:上海市华东师范大学附属天山学校2021-2022学年高一下学期期中数学试题
4 . 已知函数
,则它的单调递增区间是_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a1ee40b27983c5a9188827f90443281.png)
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2021-09-05更新
|
3120次组卷
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2卷引用:上海市建青中学2020-2021学年高一下学期期中数学试题
名校
解题方法
5 . 在
中,若
,则
一定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c97dbba0c4501a0c12d590413d85d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.锐角三角形 | B.钝角三角形 | C.直角三角形 | D.等边三角形 |
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2021-09-04更新
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701次组卷
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3卷引用:上海市延安中学2020-2021学年高一下学期期中数学试题
名校
6 . 已知在平面直角坐标系中,
为坐标原点,定义非零向量
的“相伴函数”为
,向量
称为函数
的“相伴向量”;记平面内所有向量的“相伴函数”构成的集合为
.
(1)已知
,
,若函数
为集合
中的元素,求其“相伴向量”的模的取值范围;
(2)已知点
满足条件:
,
;若向量
的“相伴函数”
在
处取得最大值,当
在区间
变化时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074d049ba730bc0a038a076d5eb10035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10340e091d449def212223acd93a4269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074d049ba730bc0a038a076d5eb10035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/014596e97b52f22597ff68cc5b0616a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb66f4db41478c23128adc14f2796556.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab65cb6a94429813529ad6bd1f45476.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f786a5701dc1a8a015e8843c3360151b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d6bb01f1044358cc5fee441bc62489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7d4d2a7191b6c58469a9c2b3856bf85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6799b234237333b0efa331d98f0374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f82446db626bc1ff915cd0c8b12cee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e0e24323fe73e5d9fc6136219306da.png)
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7 . 已知函数
(其中
,
)的最小正周期为
.
(1)求
的值;
(2)如果
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e43ae7a95cf3035130b460fe0067eed2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9fdc1f8ed0ae44b54a9a2a3aca2db4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d4e4a30f64d8ffccb3fb538ed91b4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d68a44095aa0869b788b1c39d28aa6ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
您最近一年使用:0次
名校
8 . 已知
.
,其中
.
为锐角,且
.
(1)求
的值;
(2)若
,求
及
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7e28d78ca0c5b32b45975f2670aed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f9b7a6bff423781c171a57f5413bff.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/3ece218085a4c293d5be15f37ccc8c2f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbb006ea697b63a914eb487073f0abe1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9626e5b9db3f22a442f10fef71b76f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacde1c42151734fdc60f3001b590de.png)
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2019-09-17更新
|
750次组卷
|
3卷引用:上海市复旦中学2016-2017学年高一下学期第一次月考数学试题
上海市复旦中学2016-2017学年高一下学期第一次月考数学试题黑龙江省牡丹江市第一高级中学2020届高三上学期开学检测数学(理)试题(已下线)第五章+三角函数(基础过关)-2020-2021学年高一数学单元测试定心卷(人教A版2019必修第一册)
名校
9 . 在△ABC中,“
”是“△ABC是钝角三角形”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52543f6f7d6166e25ee2359c28c614c5.png)
A.充要条件 | B.充分不必要条件 |
C.必要不充分条件 | D.既不充分也不必要条件 |
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2019-12-13更新
|
376次组卷
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2卷引用:上海市延安中学2018-2019学年高三上学期期中数学试题
名校
10 . 已知
均为锐角.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058d23f0c61f7cdc0ac5b5d2c2b46ef5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8f798a9af75a091a8be0b71f2038260.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5438613cda89232a531a69da49dee747.png)
您最近一年使用:0次
2019-12-07更新
|
591次组卷
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2卷引用:上海市延安中学2018-2019学年高三上学期期中数学试题