解题方法
1 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
___________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc517f1a2fc3592714482bd726c82795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
您最近一年使用:0次
2 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad16ff07167522db800932bce63aac3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
您最近一年使用:0次
解题方法
3 . 在①
;②
;③
,三个条件中任选一个,补充在下面问题中,并对其求解.
问题:若锐角
满足______,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0879662fbc90177aa4d154254c924751.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1d9217e1141e16e7645b355e73270c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06f133aa01da94507ca8c8a321468e3c.png)
问题:若锐角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cda021b7f4e9325ac91551a5aec34acc.png)
您最近一年使用:0次
名校
4 . 在平面直角坐标系
中,锐角
的顶点在坐标原点
,始边与
轴非负半轴重合,终边与单位圆交于点
,且点
的纵坐标为
.
(1)求
和
;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02fc27f36003850ea40fb1d9cf18d462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850dba25bf0f5f13541bf9b6ec12b84d.png)
您最近一年使用:0次
2020-01-31更新
|
401次组卷
|
2卷引用:山东省菏泽市2019-2020学年高一上学期期末联考数学(A)试题
解题方法
5 . 已知tanx=
,则tan2x等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea0ad9e378603a095f56d2d320062900.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 如图所求扇形
的半径为1,圆心角为
,
是扇形弧上的动点,
是扇形的内接矩形,记
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/3c041dcd-084e-4c9c-8485-e2353137f9c1.png?resizew=139)
(1)当
时,求
的值;
(2)记矩形
的面积为
,求
最大值,并求此时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6c71a0da6a878a5b12bf8a8e784645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/479af92937acd790f85e3035afad897d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2e157b248dce91edb76974bd5bb3f5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/3c041dcd-084e-4c9c-8485-e2353137f9c1.png?resizew=139)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f2125dfe51596f77b060572f706cbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850dba25bf0f5f13541bf9b6ec12b84d.png)
(2)记矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ba6b6ee00c4b2763cb3fa59caa69f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ba6b6ee00c4b2763cb3fa59caa69f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2018-04-25更新
|
887次组卷
|
3卷引用:山东省德州市第一中学2022-2023学年高一下学期6月月考数学试题
名校
解题方法
7 . 已知角
的终边经过点
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9bcc60fb607ffb8d8906a45af6700f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-05-05更新
|
376次组卷
|
3卷引用:山东省潍坊高密市2020届高三模拟数学试题二
8 . 在
中,
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ee608882881caff2f1e223177424ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5afdf895ebbcb2cf7c94429aadeb8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44cc1bbfd5217ffedd5216f0e2adf523.png)
您最近一年使用:0次
9 . 已知
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c503cf69a5bb76703ac350cd033b30.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9d1349744a791688af11f126ec3c65e.png)
您最近一年使用:0次
名校
解题方法
10 . 如图,在平面直角坐标系
中,以
轴为始边作两个锐角
,它们的终边分别与单位圆交于
、
两点.已知
、
的纵坐标分别为
、
.
![](https://img.xkw.com/dksih/QBM/2020/2/11/2396980915232768/2424609037656064/STEM/c8134b4ee4d74633bf2d0e5a5a2f9e02.png?resizew=197)
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b96754743b4a2d1e7b55598af708344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
![](https://img.xkw.com/dksih/QBM/2020/2/11/2396980915232768/2424609037656064/STEM/c8134b4ee4d74633bf2d0e5a5a2f9e02.png?resizew=197)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d75442a901f013aeb5c52a7113ae9b9.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfea1e888676a13ad69c72fba0405ea.png)
您最近一年使用:0次
2020-03-22更新
|
344次组卷
|
2卷引用:山东省济宁市实验中学2022-2023学年高一下学期3月月考数学试题