解题方法
1 . 在
中,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff368d244114153f5ccb68022bb2c2d.png)
__________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69aac8b6b16676c948ca2862a371186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff368d244114153f5ccb68022bb2c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
2 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be9814a737e13ebcc4d23d9ce651e058.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3920dc3975bdc68532e6683b4402ff80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be9814a737e13ebcc4d23d9ce651e058.png)
您最近一年使用:0次
2023-09-27更新
|
394次组卷
|
2卷引用:第01讲 5.1任意角和弧度制+5.2.1三角函数的概念+ 5.2.2同角三角函数的基本关系(2)-【练透核心考点】
3 . 已知
为锐角,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
___ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ca3f0a4b2d06539e74594736881aaa.png)
___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f4ce7595659ef31dc22b220ceeff33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ca3f0a4b2d06539e74594736881aaa.png)
您最近一年使用:0次
2023-04-17更新
|
93次组卷
|
3卷引用:3.1二倍角公式课后习题2020-2021学年高一数学北师大版(2019)必修第二册
名校
4 . 如图,角
的终边与单位圆的交点
位于第一象限,其横坐标为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
___________ ,
顺时针旋转
得
,
顺时针旋转
得
,……,
顺时针旋转
得
,则点
的纵坐标为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802e162b98c280720fcb909cf392fda3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f88ec2dbad3fa6208c0493291e5ccdcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1652145a4785b50fa22fdd8c63f724b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1652145a4785b50fa22fdd8c63f724b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ae18c3151ef1283fbd7854562fdfc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24cc88ab4bf81558263875b7bfc0f6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9123b1c8cb0bbaca44e8464bee03678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b39ad8bbb343f2603ddc865fff66b303.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/16/58fd0b2c-f865-476a-9514-1982a0aff2bc.png?resizew=159)
您最近一年使用:0次
2022-08-15更新
|
589次组卷
|
6卷引用:2023版 苏教版(2019) 必修第一册 名校名师卷 第十一单元 三角函数概念B卷
解题方法
5 . 已知
为钝角,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6162c7dff7bb61b95d2281b54b3e68.png)
___________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b979f86f43886d61f8f244d01296132f.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d3e1db49c0d259c4f4153726f93727a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6162c7dff7bb61b95d2281b54b3e68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b979f86f43886d61f8f244d01296132f.png)
您最近一年使用:0次
2022-06-29更新
|
463次组卷
|
4卷引用:河北省承德高中2021~2022学年高一下学期六月联考数学试题
解题方法
6 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42b9e00a2da3ae3df74ff531a748807b.png)
__________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5973f85df29e7360063e7cea8201447.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0afded9e0c63a8db66f198281047bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42b9e00a2da3ae3df74ff531a748807b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5973f85df29e7360063e7cea8201447.png)
您最近一年使用:0次
7 . 在
中,
,D是线段
上一点,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d2b3911a9af3f480dc2266558b7a4b.png)
_____________ ,
的长为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c03d3c49db3849a7c749b4503e6ebb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35333abd7f02d663d15251bc5cbbf921.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d2b3911a9af3f480dc2266558b7a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
名校
解题方法
8 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85527d190d4e1d6bac4145d1c716e65e.png)
___________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a18798408a1b91fdb12deb79f0b562a.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a91453d2ca6fb15640a02b3712c3b877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85527d190d4e1d6bac4145d1c716e65e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a18798408a1b91fdb12deb79f0b562a.png)
您最近一年使用:0次
2022-05-07更新
|
853次组卷
|
3卷引用:第03讲 两角和与差的正弦、余弦和正切公式 (高频考点—精讲)-2
9 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
__________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ae5cb0f5d048f7d3db6ab62c37ce1c.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2093073cd712f8c2bb1309c74e6520b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ae5cb0f5d048f7d3db6ab62c37ce1c.png)
您最近一年使用:0次
解题方法
10 . 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