名校
解题方法
1 . 若
内一点
满足
,则称点
为
的布洛卡点,
为
的布洛卡角.如图,已知
中,
,
,
,点
为的布洛卡点,
为
的布洛卡角.
,且满足
,求
的大小.
(2)若
为锐角三角形.
(ⅰ)证明:
.
(ⅱ)若
平分
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec15e5cb6d4dc2cf6ba0bedd87514448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e781a2489271bfd1597cba1bb6f5887.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df81cda12d7601d58b1d9c7c180c4d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c884a45b56bc34d79273b067c1520b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b05d3b8f5c9df891ef6fbcaf12f43207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fefcd73e7c22ace3ccd013842cf72a60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(ⅰ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f272ca460306b34bf7e3e99d38dca8b.png)
(ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/988b7e964e313579ab8869d67d5be007.png)
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2024-04-30更新
|
1949次组卷
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6卷引用:河北省部分高中2024届高三下学期二模考试数学试题
河北省部分高中2024届高三下学期二模考试数学试题(已下线)2024年普通高等学校招生全国统一考试数学押题卷(一)(已下线)压轴题07三角函数与正余弦定理压轴题9题型汇总-1湖南省长沙市长郡中学2024届高考适应考试(三)数学试题(已下线)专题02 第六章 解三角形及其应用-期末考点大串讲(人教A版2019必修第二册)(已下线)专题06 解三角形综合大题归类(2) -期末考点大串讲(苏教版(2019))
2 . 如图,在
中,
,D在边AB上,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/178a3b58fcb79d3c7cb823c801988a07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d518b36ef8bb9e2f5e03a828931a960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af7d22f818988a40cdef20bdc2a9272c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-04-30更新
|
535次组卷
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6卷引用:河北省沧州市运东四校2023-2024学年高一下学期4月期中考试数学试题
河北省沧州市运东四校2023-2024学年高一下学期4月期中考试数学试题河南省信阳高级中学2023-2024学年高一下学期5月期中考试数学试题(已下线)【练】专题五 平面向量的综合问题(压轴大全)湖南省长沙市雅礼中学2023-2024学年高二下学期5月检测数学试题(已下线)模块五 专题5 全真拔高模拟1(苏教版期中研习高一)(已下线)专题03 解三角形(1)-期末考点大串讲(苏教版(2019))
解题方法
3 . 已知角
的顶点与坐标原点重合,始边与
轴的非负半轴重合,且终边上一点的坐标为
,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/c47acdaa7db189fa7b579edbadaf115d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d70f474a5c8e17b53315731d89e738a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
4 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c28d596b69132cd0d2299c6093e02e2.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f4facdcf8225101889b12170f53508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c28d596b69132cd0d2299c6093e02e2.png)
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2024高三·全国·专题练习
5 . 已知函数
的最小值为
.
(1)求实数
的值;
(2)将
图象上所有点向右平移
个单位长度,再将图象上所有点的横坐标缩短为原来的
,纵坐标不变,得到函数
的图象,若
在
上有两个不同的解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac2057d00c5cae7c01af7b773d55791d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aeb076bad84890e24dbdc945ad543cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e91f703d3876ea0762ca88d88faee40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b7a74b30eb8de7b7e7ae2ac4b6d3172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024高三·全国·专题练习
6 . 已知
,
为偶函数,若
,且
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4774aed5eed842bdb68ad99894cb8ca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ed98b9ef023dccc344c3879af64138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf19ebcf690f8e90af90b2244a04be9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89703b692d53294df2c2913ca8afb405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aebd793b70534105e1833a67b22ee8e.png)
A.-![]() | B.![]() | C.![]() | D.![]() |
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2024高三·全国·专题练习
解题方法
7 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8e8d293c131c6eaf9d394560174372.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a3a587ec8834a9ecb0cf1b72f1c62ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8e8d293c131c6eaf9d394560174372.png)
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2024高三·全国·专题练习
解题方法
8 . 已知函数
在
内恰有3个零点,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/379a841992e700abcd98ba2aa927ff6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55cfcbb5c5950e18a8452b38bb17036.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024·全国·模拟预测
解题方法
9 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a3da7b68545fb683d596a3002f9918c.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b55ac24abf8a7eafedb7e6241a57c65c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a3da7b68545fb683d596a3002f9918c.png)
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2024·全国·模拟预测
解题方法
10 . 已知函数
的图像为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9948468c146d38bd1668a2fe7a0b2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.函数![]() ![]() |
B.图像![]() ![]() |
C.图像![]() ![]() |
D.要得到函数![]() ![]() ![]() ![]() |
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