名校
1 . 写出一组使得不等式
成立的
,
,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ca3f0a4b2d06539e74594736881aaa.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b84faebe697c810fec3de69708a265.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/9251dff989f7d60db751b73033dee269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ca3f0a4b2d06539e74594736881aaa.png)
您最近一年使用:0次
名校
解题方法
2 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6138a2f20b2b330fb68a1d9695aea4b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b30a373279f00aade8369d910ee277.png)
A.2 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
3 . 已知
,其中
.
(1)求
的值;
(2)求
的值;
(3)设
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61216b6344288c75bbb110804eec3678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5bec99b0f7da69dd2f6ef8e88c35b81.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50238d3700e94b1ffe45975fa20a53c.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998b9daea176ab14ea9915e77b646577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82c5c4e67380ea1788193279aecfea19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
您最近一年使用:0次
名校
解题方法
4 . 如图,一幢高楼楼面上有一块浮雕,上沿为C,下沿为
,某班数学小组在斜坡
坡脚
处测得浮雕下沿
的仰角
满足
,在斜坡
上的
处测得
满足
.已知斜坡
与地面的夹角为
满足
,
,则浮雕
的高度(上下沿之间的距离)为______ m.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db73deb6fa502e49e3c873ef076fbc32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de9541851d2334cb2f5e51cc9d11feb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c337e4b1f98e4fa86c461365308b65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b3fe76cb6a23b83d58e79e1a66c988.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc282a78802438fd0e64d185810257b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
名校
解题方法
5 . 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
|
140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
6 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81c3bb3d06bfad822572fb67b00ad49e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727974cfdb062f3d5454ea2dd7d4caf2.png)
A.![]() | B.![]() | C.2 | D.3 |
您最近一年使用:0次
名校
7 . 若
,则
的值______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02bb083439549baed62b2f260f44e4ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e62d85b6a82ae010190919df45f9d455.png)
您最近一年使用:0次
2024-04-13更新
|
299次组卷
|
3卷引用:北京市顺义牛栏山第一中学2023-2024学年高一下学期4月月考数学试卷
北京市顺义牛栏山第一中学2023-2024学年高一下学期4月月考数学试卷(已下线)专题04 三角恒等变换-期末考点大串讲(人教B版2019必修第三册)甘肃省武威第十八中学2023-2024学年高一下学期期中考试数学试卷
名校
解题方法
8 . 已知
为锐角,
.
(1)求
和
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0f9cda096b3352957a37b5995f559d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f35152720e43c6403d43bef47c0377d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfea1e888676a13ad69c72fba0405ea.png)
您最近一年使用:0次
2024-01-20更新
|
410次组卷
|
4卷引用:北京市朝阳区2023-2024学年高一上学期期末质量检测数学试题
北京市朝阳区2023-2024学年高一上学期期末质量检测数学试题北京景山学校2023-2024学年高一(1,2,3班)下学期期中考试数学试题(已下线)第10章 三角恒等变换单元综合能力测试卷-【帮课堂】(苏教版2019必修第二册)(已下线)8.2.3 倍角公式-【帮课堂】(人教B版2019必修第三册)
名校
解题方法
9 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4b705f9d3961773e08e1cf0ae57af5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
A.![]() | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
2024-01-19更新
|
1494次组卷
|
4卷引用:北京市丰台区2023-2024学年高一上学期期末练习数学试卷
北京市丰台区2023-2024学年高一上学期期末练习数学试卷(已下线)【第三课】5.5.1课时2 两角和与差的正切公式(已下线)10.1 两角和与差的三角函数-【帮课堂】(苏教版2019必修第二册)湖北省襄阳市第五中学2024届高三下学期开学考试数学试题
解题方法
10 . 已知
为第二象限角,且
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560a8e5c9e1f5736c9d1bafb8d654f55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c68268db0aaf58302512a5661740852.png)
A.![]() | B.1 | C.![]() | D.7 |
您最近一年使用:0次