名校
解题方法
1 . 如图,在平面直角坐标系xOy中,点
,点
在单位圆上,
(
).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/5/8/0a14a7c5-26e7-480e-9564-ccc8d03e6c5f.png?resizew=175)
(1)求
的值;
(2)若四边形OADB是平行四边形,求点D的坐标;
(3)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8950c7bc835103d52ceffab14b6b31a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf66ddd7e0869ffdce7f9c45972d193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb7e00f8bacce4d649b535449f04568c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0917d846965359153058d56498f076bb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/5/8/0a14a7c5-26e7-480e-9564-ccc8d03e6c5f.png?resizew=175)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85d1f5778af41bf197321d654a41597c.png)
(2)若四边形OADB是平行四边形,求点D的坐标;
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfbdf11b398a9190998780206d7e9512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7a66e27ef92fcc51530e54533e23973.png)
您最近一年使用:0次
2024-05-04更新
|
139次组卷
|
2卷引用:北京市门头沟区大峪中学2023-2024学年高一下学期期中数学试卷
名校
解题方法
2 . 已知角
的终边经过点
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99fe5409e8b550d303f439f02c646e00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
您最近一年使用:0次
名校
解题方法
3 . 在平面直角坐标系
中,角
与角
均以
为始边,它们的终边关于
轴对称,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c634aa65493615fbb40f1352a88c5aa3.png)
______ .
![](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/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fdec18642892e189c93a15b0d91cee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c634aa65493615fbb40f1352a88c5aa3.png)
您最近一年使用:0次
解题方法
4 . 在平面直角坐标系
中,角
的顶点与坐标原点重合,始边与
轴的非负半轴重合,终边经过点
,则
的值为( )
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76b94fa972f92861f2fb70bed2ff9cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
5 . 某地进行老旧小区改造,有半径为
米,圆心角为
的一块扇形空置地(如图),现欲从中规划出一块三角形绿地
,其中
在
上,
,垂足为
,
,垂足为
,设
;
,
(用
表示);
(2)当
在
上运动时,这块三角形绿地的最大面积,以及取到最大面积时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3779b4ea5477aebfe85113b0de1d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08361173b096d18b33210a955e109f42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84733f9dc908ceb11459cc2aed580ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11819198f8b689e0b484bc6f9fdf0b1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf4063a4c0d96e4fe260243e285990b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902f97913e1af1e6c793f7edfe6b2114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2024-04-26更新
|
227次组卷
|
2卷引用:北京市育才学校2023-2024学年高一下学期期中考试数学试题
名校
解题方法
6 . 在平面直角坐标系中,角
的顶点与原点重合,始边与
轴的非负半轴重合,终边经过点
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39822cb6df5463c27ac9bfed261a2ff6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a3891d7a1be7a81bbb5ef81e59f3cd7.png)
A.11 | B.![]() | C.10 | D.![]() |
您最近一年使用:0次
7 . 已知点
为角
终边上一点.
(1)求
的值;
(2)求
的值;
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b0a02af3c1cfa58827bd92619e04c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0b141d7220b90ac6004ba270f7ab2f4.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7333a5b564bcb7c0b78f1949d1e305c.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1eee5fac428cf024c0020295689f41b.png)
您最近一年使用:0次
23-24高一下·全国·期中
8 . 若角
的终边上一点的坐标为
,将角
的终边按逆时针旋转
得到角
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b63e88d9ce4afb1766093727c466c577.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/290092e2e5ec15af1f6f294fdd208603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b63e88d9ce4afb1766093727c466c577.png)
您最近一年使用:0次
名校
解题方法
9 . 已知角
的顶点在坐标原点
,始边与
轴的非负半轴重合.若角
的终边绕着原点按顺时针方向旋转
后经过点
,则
( )
![](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/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
A.![]() | B.![]() | C.![]() | D.3 |
您最近一年使用:0次
名校
10 . 已知角
的顶点为坐标原点,始边与x轴的非负半轴重合,终边上有两点
,
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1de2c0218509a1f3ededd231f68894b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a2cb1413110a5b3ab7ce84965d31572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9e80a2647e9df8964464937ca6fb45b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd4b045a574fd9256859a7ad0659963f.png)
A.![]() | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
2024-04-22更新
|
713次组卷
|
4卷引用:4.3 二倍角的三角函数公式-同步精品课堂(北师大版2019必修第二册)
(已下线)4.3 二倍角的三角函数公式-同步精品课堂(北师大版2019必修第二册)重庆市第八中学2024届高三下学期高考强化训练一数学试题(已下线)数学(江苏专用03)福建省福州延安中学2024届高三下学期第一次模拟数学试题