解题方法
1 . 已知
,且
是第二象限的角,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d4000ea4ce9aea7958d27fde4f214e.png)
_____________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96c6471dcada2d0e4b9efef09bde303f.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e90285b4943db2befa410d4bcec380c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d4000ea4ce9aea7958d27fde4f214e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96c6471dcada2d0e4b9efef09bde303f.png)
您最近一年使用:0次
2021-03-25更新
|
134次组卷
|
2卷引用:沪教版(2020) 必修第二册 同步跟踪练习 第6章 三角 6.1.3 同角三角比的关系和诱导公式 第2课时
解题方法
2 . 已知
是第三象限角,且
时,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
___________ ;
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebce8076415e91d8d4ce5627b36bca0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2292526955d7e3385fde311311253d4.png)
您最近一年使用:0次
20-21高一·全国·课后作业
解题方法
3 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec24738276dca1046d5fb7730d232bc2.png)
__ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8640aafe54018ba013295b68e2946a7a.png)
__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46ec8cad17055999ec3617cb4df7021f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5248ea408c8ff3a73c147d388fc8a2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec24738276dca1046d5fb7730d232bc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8640aafe54018ba013295b68e2946a7a.png)
您最近一年使用:0次
20-21高一·全国·课后作业
解题方法
4 . 若
(
),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd582bfddd59659374aeeeeb93d0505.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9fbf538ae87b660c3a3424729b55d61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a135466eb8ca64d002d0fad36176d1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd582bfddd59659374aeeeeb93d0505.png)
您最近一年使用:0次
解题方法
5 . 若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e4a51b748dd7122251dbccb35992adf.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9330f5a1902fe99fc5edd744fbe9146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f201f6e84279e80b85f394f4d930ed41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e4a51b748dd7122251dbccb35992adf.png)
您最近一年使用:0次
19-20高一·全国·课后作业
解题方法
6 . 在
中,若tanA=
,则sinA=________ ,cosA=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d74ef32584586ec4857acd0a3f4fe9.png)
您最近一年使用:0次
解题方法
7 . 设
、
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
____ , ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b729f3bcad3527fd911eb71de25a64f9.png)
___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6642ecc7647dc422561bcbdd65cb1297.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0682d714699907bbfbc5f893b908a0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d421a7af2bd72abce2669e4dfc77a527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b729f3bcad3527fd911eb71de25a64f9.png)
您最近一年使用:0次
解题方法
8 . 已知
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff35f868ac0388a82af7dd7a97df0d03.png)
__ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c10d37c4233d8cb918ad704303fa8190.png)
__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42974715861d341e181182c0ef44af91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc36f1850fb5308496d5a44dcb1bf41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff35f868ac0388a82af7dd7a97df0d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c10d37c4233d8cb918ad704303fa8190.png)
您最近一年使用:0次
2020-07-25更新
|
396次组卷
|
6卷引用:专题5.4 三角恒等变换(讲)-2021年新高考数学一轮复习讲练测
(已下线)专题5.4 三角恒等变换(讲)-2021年新高考数学一轮复习讲练测(已下线)5.5+三角恒等变换-2020-2021高中数学新教材配套提升训练(人教A版必修第一册)(已下线)【新东方】杭州新东方高中数学试卷342(已下线)专题5.4 三角恒等变换(讲)- 2022年高考数学一轮复习讲练测(新教材新高考)浙江省嘉兴市2019-2020学年高一(下)期末数学试题(已下线)专题5.4三角恒等变换(A卷基础篇)-2020-2021学年高一数学必修第一册同步单元AB卷(新教材人教A版,浙江专用)
解题方法
9 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c7d3d9fee28ac18c2c75f38d15d38d.png)
___________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a939b9b18c1098aacaaf58a9ca963b.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24de17d02b528fb76ffd57c3751809ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c7d3d9fee28ac18c2c75f38d15d38d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a939b9b18c1098aacaaf58a9ca963b.png)
您最近一年使用:0次
2020-06-22更新
|
484次组卷
|
6卷引用:沪教版(上海) 高一第二学期 新高考辅导与训练 第5章 三角比 5.5 同角三角比的关系和诱导公式(1)
沪教版(上海) 高一第二学期 新高考辅导与训练 第5章 三角比 5.5 同角三角比的关系和诱导公式(1)(已下线)5.2+三角函数的概念-2020-2021高中数学新教材配套提升训练(人教A版必修第一册)(已下线)专题5.2 同角三角函数的基本关系与诱导公式 (精练)-2021年新高考数学一轮复习学与练专题7.4 《三角函数》(A卷基础篇)-2020-2021学年高一数学必修第三册同步单元AB卷(新教材人教B版)(已下线)第6章 三角章节考点分类复习导学案(已下线)专题5.2+三角函数的诱导公式(B卷提升篇)-2020-2021学年高一数学必修第一册同步单元AB卷(新教材人教A版,浙江专用)
解题方法
10 . 若
是第三象限角,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
_________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4306b944f46c6f8820960a57059a393.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
您最近一年使用:0次