解题方法
1 . 已知
.
(1)求
及
;
(2)若
,
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a7de5b70003502e40b95b3b7d3d933.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850dba25bf0f5f13541bf9b6ec12b84d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3daa31b2f5ff0e01b5d20935d54de04.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc282dae4ac9132196ac5d13f63b901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/809b2b0bf2d1ea269d65d066ffe951d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c711885ba609af63b3f02b7074914ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5438613cda89232a531a69da49dee747.png)
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解题方法
2 . 已知
,
,
其中
,
为锐角.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d552becdb249c29ef8eb3ce563850ec7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9518cf54c4291915dd22a0e652a3f9d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969ee004b0325a64e66805f13acb294b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90f40b659cbbab89caae9c1a40acaca3.png)
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2023-09-21更新
|
584次组卷
|
4卷引用:四川省眉山市仁寿县2022-2023学年高一下学期期中联考数学试题
四川省眉山市仁寿县2022-2023学年高一下学期期中联考数学试题(已下线)专题13 三角恒等变换压轴题-【常考压轴题】重庆市2024届高三上学期9月月度质量检测数学试题(已下线)考点10 两角和与差正切公式的应用 --2024届高考数学考点总动员【练】
名校
3 . 如图,四边形
由三个全等的正方形拼接而成,令
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a76843fea21747bf3feb1007d3f6fa37.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fb2e0d48ffbbf3ec041c3f984bf405c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6c19039b2fa4a654df95cac9684758f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a76843fea21747bf3feb1007d3f6fa37.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/7/990afb35-715b-4126-9181-4b5118e0b27d.png?resizew=182)
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2023-09-06更新
|
195次组卷
|
3卷引用:四川省宜宾市珙县中学校2022-2023学年高一下学期3月月考数学试题
四川省宜宾市珙县中学校2022-2023学年高一下学期3月月考数学试题江西省吉安市第三中学2023-2024学年高二上学期开学考试(艺术类)数学试题(已下线)【第一课】5.5.1课时2 两角和与差的正切公式
4 . 已知角
的终边经过
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4bb68bc1395f4cbcb5889aa39e1b7c.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ff87e5a2a6c2fbec818c77864eeac2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4bb68bc1395f4cbcb5889aa39e1b7c.png)
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解题方法
5 . 已知
.
(1)求证:
;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c85d7006fa5ffa28fe8b869b511820b7.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2fd417c3ee7165b37e35c218f7114f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a217d93f120aa6125e6a4de84f30c5f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b35987b15f29625da5afbeffe7e549b.png)
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解题方法
6 . 求解下列问题
(1)已知
都是锐角,
,求
的值.
(2)已知
,求
的值.
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c2c6a7ef802b79095bef6fa8bec32c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2deee3250f8fdccd02b472670dd23653.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8526c5f79d436e382552bb43369583b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b29bbe7228019ace6002f95cdb27230d.png)
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解题方法
7 .
您最近一年使用:0次
2023-08-13更新
|
565次组卷
|
3卷引用:四川省绵阳市南山中学实验学校2022-2023学年高一下学期期中考试数学试题
名校
解题方法
8 . 已知角
的顶点在坐标原点,始边与
轴非负半轴重合,终边经过点
,且
.
(1)求
及
的值;
(2)将射线
绕坐标原点沿顺时针方向旋转
后,得到射线
,且
是角
的终边,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41827dc0be199521011f46e3b14678b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e07e5bf3091755b1a458d38788bb0b2e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
(2)将射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fe29caf61254f41c49125e31bf37614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fe29caf61254f41c49125e31bf37614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f35152720e43c6403d43bef47c0377d.png)
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解题方法
9 . 已知
的内角A,B,C所对的边分别为a,b,c,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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2023-08-10更新
|
814次组卷
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4卷引用:四川省成都市树德中学光华校区2022-2023学年高一下学期数学测试(六)
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10 . 下列选项中,与
的值相等的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
A. ![]() | B.![]() |
C.![]() | D.![]() |
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