名校
解题方法
1 . 已知
,
,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d545f32c11174129f651e14c62a94e49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d440669c516d6dff0fedaf3eed41aca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c80ba919c82f986a9ce2fa5b2128e4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccb5f0bb8ccd10e7eca95645ee5307b5.png)
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2023-10-09更新
|
279次组卷
|
4卷引用:北师大版(2019)必修第二册课本习题 习题4-2
北师大版(2019)必修第二册课本习题 习题4-2吉林省辽源市田家炳高中友好学校2023-2024学年高一上学期期末联考数学试题(已下线)【第三课】5.5.1课时2 两角和与差的正切公式(已下线)习题 4-2
解题方法
2 . 已知
,
,
,
均为第二象限角,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf24ce696b370121c4fbc928e3694943.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e57e22b4524d25c74497c916baf0f65.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/bbb006ea697b63a914eb487073f0abe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3884b343d76a26b4b85b48987d7064.png)
您最近一年使用:0次
解题方法
3 . 利用特殊角的三角函数值计算:
(1)
;
(2)
;
(3)
;
(4)
;
(5)
;
(6)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f804115867145d0830996a4372702823.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2faa5a5696fbf0f7bc4bf4dde578d3c.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b2cd313332b523b5046fedd4e926aa.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b77f94bddb78e3d8a4b4166c9bb75f9.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f87c5488d28c039d315f97f25ee9976.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d509f5a2e0c587cfbec1795fac7fbed2.png)
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解题方法
4 . 已知
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9ac3093d01d0379f029ec4f3d66e912.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/507709e5fa6952bd418d7db9e69791de.png)
您最近一年使用:0次
解题方法
5 . 已知
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc00d1eb3b3f5e56df57af26f8354d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f84a25527e54ee2614e3b5e99ef8a3d4.png)
您最近一年使用:0次
解题方法
6 . 求证:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df7ca290a5d2f4d189fbdd509623e2f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a78c923c7d0e12343d37ef9eab845a3.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1e68f383b923afaa771076d06c10b1.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/772fbd455cfda22084a1d7401ecfb70d.png)
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2023-10-09更新
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5卷引用:北师大版(2019)必修第二册课本习题 习题4-1
北师大版(2019)必修第二册课本习题 习题4-1(已下线)专题5.2 三角函数的概念-举一反三系列7.2 三角函数概念(2)-【帮课堂】(苏教版2019必修第一册)(已下线)7.2.3 同角三角函数的基本关系式-【帮课堂】(人教B版2019必修第三册)(已下线)习题 4-1
解题方法
7 . 已知
,用
表示
和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69613292e0460fd0f9d918e51a221573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7d5ef3a3d9a03be91135fc426d57cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefd06c239145a2b6ae87a955aa51414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
您最近一年使用:0次
解题方法
8 . (1)已知
,
在第四象限,求
,
的值;
(2)已知
,
在第二象限,求
,
的值;
(3)已知
,求
,
的值;
(4)已知
,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d26c247e674b8449ea78b62c18ff8d54.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)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dcef576b08f00c2058497b14fc0277e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8243953e45f9db416d64b444b259b02b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
(4)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4c7b94f2f548b7b705ccc52ebc060c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a48345d239aaf8e9ca1ff2846c08a99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c5a05a11f731194a845e68a0479ce4.png)
您最近一年使用:0次
解题方法
9 . 在
中,已知
,
,求
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bfeaf26f178031f78a5545233a2a73f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88a95f9136fe8f648f21b332447a49d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f3a180c35808d1fe14ae17876c4cc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e5dc31ddd298ec8ee56d934ca18e1b.png)
您最近一年使用:0次
2023-10-09更新
|
65次组卷
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3卷引用:北师大版(2019)必修第二册课本习题第四章3.1二倍角公式
解题方法
10 . 已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f8ef71e9a30c090547feb703af4ea9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850dba25bf0f5f13541bf9b6ec12b84d.png)
您最近一年使用:0次
2023-10-09更新
|
128次组卷
|
4卷引用:北师大版(2019)必修第二册课本习题第四章3.1二倍角公式
北师大版(2019)必修第二册课本习题第四章3.1二倍角公式(已下线)5.5.1 两角和与差的正弦、余弦、正切公式精练-【题型分类归纳】(人教A版2019必修第一册)(已下线)3.1 二倍角公式北师大版(2019)必修第二册课本例题3.1 二倍角公式