名校
解题方法
1 . 在
中,角
对应的边分别为
,已知
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
______ ,
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/8d12de0fe32eedb8fab4fd3a50dfa7a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2bc8adc993cad5553d66285b5971f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2024高三·江苏·专题练习
名校
解题方法
2 . 在
中,内角
,
,
所对的边分别为
,
,
,已知
,则
=______ ;若
,则
面积的最大值为______ .
![](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/b028485297658e391843b64b79c7601e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328f4d3a80a80e08c3fd6544eadcb98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2024-03-11更新
|
1432次组卷
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6卷引用:重庆市万州区万州第一中学2023-2024学年高一下学期3月月考数学试题
重庆市万州区万州第一中学2023-2024学年高一下学期3月月考数学试题(已下线)专题03 解三角形(分层练)(已下线)专题11.2正弦定理-重难点突破及混淆易错规避(苏教版2019必修第二册)(已下线)数学(九省新高考新结构卷02)广东省广州市玉岩中学2023~2024学年高一下学期期中考试数学试卷湖北省荆州市沙市中学2024届高三下学期高考全真模拟数学试卷
3 . 在
中,角
的对边分别为
,
,
,满足
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75ad93ab5ccf290b22c83c542933e231.png)
______ ,
的面积最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.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/23992da7b7214b54b4aba7f0fe5f7039.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9222209f26591e0296576302dd058251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75ad93ab5ccf290b22c83c542933e231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2023-10-09更新
|
764次组卷
|
3卷引用:重庆市七校2024届高三上学期第一次月考数学试题
名校
4 . 在
中,角A、B、C的对边分别为a、b、c.已知
,
,
.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
__________ ﹔若点Р为线段AB上的点,且
,则
的最大值是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843f1927989a8f204ed61875597f749a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386eb659fda09b15da83566e79f20e3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b78b012806a8fd298b7fe26855f327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8fe4b40606d4e67aa7f3e23e0a4d14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
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解题方法
5 . 我国南宋时期杰出数学家秦九韶在《数书九章》中提出了“三斜求积术”,即以小斜幂,并大斜幂,减中斜幂,余半之,自乘于上;以小斜幂乘大斜幂,减上,余四约之,为实;一为从隅,开平方得积,把以上文字写出公式,即
(其中
为三角形面积,a,b,c为三角形的三边). 在非直角
中,a,b,c为内角A,B,C所对应的三边,若
且
,则
面积的最大值是________ ,此时
外接圆的半径为____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad209824da2aadcf7b5479de68187cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf376203ba043072387dbb1c6188156.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2022-06-23更新
|
701次组卷
|
3卷引用:重庆市第八中学校2023-2024学年高一下学期4月阶段练习数学试题
解题方法
6 . 已知
分别是△
内角
的对边,其中
,
,△![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
的面积为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbaa87bd53b4915bd5691485cfd2ebf.png)
___________ ,
的最小值是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](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/098943e98ad321740f83f0bb67004598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c58030910da36cd326bb8a6a0746ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
的面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbaa87bd53b4915bd5691485cfd2ebf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba495cf1e33ccdda8eb32f3543cc7c45.png)
您最近一年使用:0次
名校
解题方法
7 . 若
是锐角
内的点,在
中,角
所对的边分别为
.
(1)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b01ade639dca5519b4786d777cc616c.png)
________ ;
(2)若
,且
,则
的面积的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/575b2333233e4d3cfb812cf4bd4f4dea.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/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f5573b30734d65648f61c0a94c98de.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec832bb20c7265239f8736ce3fdc18d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b01ade639dca5519b4786d777cc616c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40018175912da0930709934b329766de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffbe5e6ba034f3c1bc28a13282a31cdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f16c359cc51ec0325c7c31f15c979e19.png)
您最近一年使用:0次
名校
解题方法
8 . 设
三个内角
,
,
所对的边分别为
,
,
,面积为
,已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
________ ;若
,
,则
的周长为__________ .
![](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/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1e45169873eda7941579732b06671d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fcf9d5c3a28073fd2a43549f159d33c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2021-10-08更新
|
443次组卷
|
2卷引用:重庆市育才中学2022届高三上学期高考适应性考试(三)数学试题
名校
解题方法
9 . 在
中,内角
,
,
的对边分别为
,
,
,已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ ;若又知
的面积为S满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447a9718a502491b47072ce013c26a2f.png)
______ .
![](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/3ce177f9015be3e290db1a2c08e661e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a507413211647e31571a232990bedef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447a9718a502491b47072ce013c26a2f.png)
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解题方法
10 . 托勒密是古希腊天文学家、地理学家、数学家,托勒密定理就是由其名字命名,该定理原文:圆的内接四边形中,两对角线所包矩形的面积等于一组对边所包矩形的面积与另一组对边所包矩形的面积之和.其意思为:圆的内接凸四边形两对对边乘积的和等于两条对角线的乘积.从这个定理可以推出正弦、余弦的和差公式及一系列的三角恒等式,托勒密定理实质上是关于共圆性的基本性质.已知四边形
的四个顶点在同一个圆的圆周上,
、
是其两条对角线,
,且△
为正三角形,则△
面积的最大值为___________ ,四边形ABCD的面积为________________ .(注:圆内接凸四边形对角互补)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb3d1070981fed5ca65a34bb2282e6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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2020-11-12更新
|
1076次组卷
|
7卷引用:重庆市第十八中学2022-2023学年高一下学期期中数学试题
重庆市第十八中学2022-2023学年高一下学期期中数学试题福建省龙岩市“长汀、连城、上杭、武平、永定、漳平”六县(市区)一中2021届高三上学期期中联考数学试题天津市武清区杨村第一中学2020-2021学年高三上学期期中数学试题(已下线)专题6.6 第六章 《平面向量》综合测试卷(B卷提升篇)-2020-2021学年高一数学必修第二册同步单元AB卷(新教材人教A版,浙江专用)江苏省南京师范大学《数学之友》2021届高三下学期二模数学试题(已下线)6.4平面向量的应用B卷福建省莆田市五校联考2024届高三上学期期中数学试题