1 . 把下列各式化成和或差的形式:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86965c380534fd76c2c826f962200b78.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c5eca52c641f8afcbb0d8441411c5e.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae35486192bdaa2e67c474f3d74c950.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f16da79d824dd9e9929d8f1b07df0b9.png)
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4卷引用:北师大版(2019)必修第二册课本习题第四章2.3三角函数的叠加及其应用
北师大版(2019)必修第二册课本习题第四章2.3三角函数的叠加及其应用(已下线)专题10.3几个三角恒等式-重难点突破及混淆易错规避(苏教版2019必修第二册)(已下线)2.3 三角函数的叠加及其应用北师大版(2019)必修第二册课本例题2.3 三角函数的叠加及其应用
2 . 把下列各式化成积的形式:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70d1ba2e1c6bb4981f62bbaab1df74e2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f91d04faf59d9229eb11cc796b031f0.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7307e136257f6d8b7cd4005c3681787.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b5c10e7ab2a4ef7fe2561abc5685f86.png)
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2023-10-09更新
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151次组卷
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4卷引用:北师大版(2019)必修第二册课本习题第四章2.3三角函数的叠加及其应用
北师大版(2019)必修第二册课本习题第四章2.3三角函数的叠加及其应用(已下线)5.5.2 简单的三角恒等变换精讲-【题型分类归纳】(人教A版2019必修第一册)(已下线)2.3 三角函数的叠加及其应用北师大版(2019)必修第二册课本例题2.3 三角函数的叠加及其应用
3 . 化简:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49ce58e3318caa5e1c9a04bb72b9d675.png)
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2023-10-09更新
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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2.3三角函数的叠加及其应用
解题方法
4 . 求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64ede7fcfaed6aad0dbf51832ecf0a10.png)
您最近一年使用:0次
解题方法
5 . 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)
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解题方法
6 . 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)
您最近一年使用:0次
解题方法
7 . 求下列函数值:
(1)
;
(2)
;
(3)
;
(4)
;
(5)
;
(6)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45b01d2bf1b175c7675c2992e152d866.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b4044c638b71133bf8cc9e0663b7154.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b07244f0512ab0e629823a5859b3c46.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccea759e9d7079f3f4ebf5c65ba75fbe.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497fab1727384e3bbf3544e8af004333.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e528a13e9764255b340732ffb3a87a3d.png)
您最近一年使用:0次
8 . 已知
,
,
,
分别是第二、第三象限角,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32eb02421d867d06df9628e7a4850f7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598fec40060a1b20eb56ba3b969a9257.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/e673f7e66c2a252da4c77c70d90c8cec.png)
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2023-10-09更新
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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§2两角和与差的三角函数公式
9 . 请用本节学过的公式验证和推导下列诱导公式:
(1)
,
;
(2)
______;
(3)
______.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e86013ece3955d2940f17e649a28d0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/857ad304c9845431a3c734f41fc198d0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/effe22cdecfbb3b7bcab85c9d4c09652.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200b0a141ee787fb4c37a49f69394cc8.png)
您最近一年使用:0次
2023-10-09更新
|
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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§2两角和与差的三角函数公式
解题方法
10 . 已知
,
,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d793dc190f23c3692a1a769ef58b584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75d28eab3b97cbeff2ff5527a0603ed1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c136aaf9b5dedec254a92ce302f4a70c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e3c905ee86ab199ec8cab8de05c864.png)
您最近一年使用:0次
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|
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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§2两角和与差的三角函数公式