1 . 已知抛物线
:
与抛物线
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc67f34cd2a13df664e342616e77fb6f.png)
在第一象限交于
点,过
点的直线
分别与
,
交于
,
两点,且
为线段
的中点,
为坐标原点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc67f34cd2a13df664e342616e77fb6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97bab3863af1f05599f1982700dd0a76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
2 . 记
的内角A,B,C的对边分别为a,b,c,已知
.
(1)若
,求C;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd60a80eff7c0b4dc516c88269ae7e77.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b106b59440184a5b49c49c3ffd8de510.png)
您最近一年使用:0次
2022-12-26更新
|
3819次组卷
|
6卷引用:2022年9月《浙江省新高考研究卷》(全国I卷)数学试题(三)
2022年9月《浙江省新高考研究卷》(全国I卷)数学试题(三)(已下线)第六章《平面向量及其应用》同步单元必刷卷(培优卷)-2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)(已下线)专题11-1 解三角形中的最值范围问题4种考法-【题型分类归纳】2022-2023学年高一数学同步讲与练(苏教版2019必修第二册)江苏省南京市雨花台中学2022-2023学年高一下学期6月月考数学试题江苏省扬州中学2022-2023学年高一下学期5月月考数学试题山西省晋城市第一中学校2022-2023学年高一下学期3月月考数学试题
名校
解题方法
3 . 在
中,内角A,B,C所对的边分别为a,b,c,已知角A为最小角且
均为整数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c885e8032706feed854495e0f608aa04.png)
___________ ,设
,
的中点为D,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a49e6e491172b97ca36e8c2b36eea8.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e974141c1bc57f22b507f725ca9dfb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c885e8032706feed854495e0f608aa04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80409796f30791dc596ea3477364b803.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a49e6e491172b97ca36e8c2b36eea8.png)
您最近一年使用:0次
2022-05-09更新
|
728次组卷
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3卷引用:浙江省绍兴市上虞区2022届高三下学期第二次适应性考试数学试题
名校
解题方法
4 . 在锐角三角形
中,角
的对边分别为
,若
,则
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e095436a68d0bf309f48dbe49a772c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031345f8b2b8c802b261f1146b1355fe.png)
您最近一年使用:0次
2020-05-28更新
|
1935次组卷
|
5卷引用:2019届浙江省部分重点中学高三调研考试数学试题