名校
解题方法
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c5b39b8d0cca3d23179cc7a1c7f441.png)
(1)若
,求函数
的值域.
(2)若
是第一象限角,求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c5b39b8d0cca3d23179cc7a1c7f441.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eaadcab89562a4e8c7036809148a82f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850c148dd901d739c792f9845c299e0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
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解题方法
2 . 在锐角
中,内角
,
,
的对边分别为
,
,
,若
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0329b8b43cfca66a9152290b0a8507f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031345f8b2b8c802b261f1146b1355fe.png)
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3 . 某摩天轮示意图如图.已知该摩天轮的半径为30米,轮上最低点与地面的距离为2米,沿逆时针方向匀速旋转,旋转一周所需时间为
分钟.在圆周上均匀分布12个座舱,标号分别为1~12(可视为点).现4号座舱位于圆周最上端,从此时 开始计时,旋转时间为
分钟.假设1号座舱与地面的距离
与时间
的函数关系为
,1号座舱与5号座舱高度之差的绝对值为
米,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb9ca4d136b6bd8c222fc43fd9f4ca1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0999d7e1264bf85be74b29cd9e34db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
A.当![]() ![]() |
B.当![]() ![]() |
C.![]() ![]() |
D.若在![]() ![]() ![]() ![]() |
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解题方法
4 . 某公司欲生产一款迎春工艺品回馈消费者,工艺品的平面设计如图所示,该工艺品由直角
和以
为直径的半圆拼接而成,点
为半圆上一点(异于
,
),点
在线段
上,且满足
.已知
,
,设
.
,且
达到最大.当
为何值时,工艺礼品达到最佳观赏效果?
(2)为了工艺礼品达到最佳稳定性便于收藏,需满足
,且
达到最大.当
为何值时,工艺礼品达到最佳稳定性?并求此时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d55963a9b9b02737110f57a377b41cb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba6ac50123b65107a0d534a7d59ccdaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01dcbd171693a47c5b932a5e84de10c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be6305b713105398b037cfa0c42a7ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98fc4fee62a7d652f71993bdf3de4c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)为了工艺礼品达到最佳稳定性便于收藏,需满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6c63b233cb3fe1c34755fc940468a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0561532c1746d8badfc2aee2623c08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0561532c1746d8badfc2aee2623c08d.png)
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2024-03-15更新
|
574次组卷
|
4卷引用:湖南省长沙市长郡中学2023-2024学年高一下学期寒假检测(开学考试)数学试题
名校
解题方法
5 . 已知函数
的图象如图所示,图象与
轴的交点为
,与
轴的交点为
,最高点
,且满足
.若将
的图象向左平移1个单位得到的图象对应的函数为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38577ac66811c00965f01bc766d5265d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685cfcdf8b02f1c651b01942be7e02bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1517dd8a1e099dbcccefc0f0ec375192.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a49d7ad0f347806ba87f84c16da378b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9210e1ed8464a8fb60af092d8eedf4a.png)
A.![]() | B.0 |
C.![]() | D.![]() |
您最近一年使用:0次
2024-03-12更新
|
1104次组卷
|
3卷引用:湖南省慈利县第一中学2023-2024学年高一下学期第一次月考数学试题
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解题方法
6 . 如图,在
中,已知
边上的中点为
,点
是边
上的动点(不含端点),
相交于点
.
;
(2)当点
为
中点时,求:
的余弦值;
(3)当
取得最小值时,设
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bafeb3a419c78eea6d9fda05581cde3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e4d7503a7d57ba242ad4e05c7006a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45a8a837c11c07073da3ff751d70278.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/340f84b11637ee42eaeeec250d0f0c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90940b82d29c6a781a368bcda5577756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2024-03-12更新
|
795次组卷
|
2卷引用:湖南省慈利县第一中学2023-2024学年高一下学期第一次月考数学试题
名校
解题方法
7 . 为了得到函数
的图象,下列变换正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c038e693d2282a8506aa0ecbf6f71915.png)
A.将函数![]() ![]() |
B.将函数![]() ![]() |
C.将函数![]() ![]() |
D.将函数![]() ![]() |
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8 . 已知
且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e2f61dba60ad38acc6af1152d5fcdb1.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6e1cb5053467139c6ad2f06ef8e55ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e3727959c931222f1f0df95128e411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e2f61dba60ad38acc6af1152d5fcdb1.png)
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9 . 函数
的图象为
,如下结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d02b64e45357820c5fccc766a302d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() ![]() |
B.对任意的![]() ![]() |
C.![]() ![]() |
D.由![]() ![]() ![]() |
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解题方法
10 . 计算:
(1)
;
(2)已知
.且
,
,求
的值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37c96a7e2a1adf68cca1a470aef99065.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c850d55a9f3275704dcaa78804ca367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8826cc2b9db6d76f7b9d5bb4e8832ee0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c2fc88cb139f6353cc047eb21547bd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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