名校
1 . 在
中,
,
,以
的中点为圆心,作直径为
的圆,分别交
于点
、
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7530a029bc2049508eeb6f2b886c69f8.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa8cee7d2463f6f7d352e8b65f47cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635c0e8cd497fd3d766fede583f2e320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65fc998d33cdf37c272f79cfd64b7b99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7530a029bc2049508eeb6f2b886c69f8.png)
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2020-04-26更新
|
336次组卷
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3卷引用:重庆市江津中学、綦江中学等六校2019-2020学年高三下学期4月复学联合诊断性考试数学(文)试题
名校
解题方法
2 . 在
中,三个内角
所对的边为
,且满足
,
,则
的面积的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/7dcb830bc1117f15a38a5a214d98160a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60b97bb18e5ca34d22b5e827316a122a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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名校
3 . 平面四边形
满足:
,
,
,
,在平面
上的动点
满足
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e0b7d845cbceccd3e76ca461fcc534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e60b6f5b4f25c0635fdbad13a14b885e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08d61b3755919715a278c5147fa4514c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1468b9b5911d23137ed19d7938f5ae74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aa668164602e991436de23a48ef27b0.png)
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名校
解题方法
4 .
中角
,
,
的对边分别是
,
,
,若
,且
,则
的面积最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/cb427583b0ba66812f6febae2f5f8162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb5bac75f36bb1dc5c8190d4dbe681d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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名校
5 . 若长度为
,
,
的三条线段可以构成一个锐角三角形,则
取值范围是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4b490440a453077cb01c3e6c935879d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a52375105b3c5a2c8b6dcad63d0ec2a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66bca960a698136c0ab1051e2744edbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2020-01-30更新
|
319次组卷
|
3卷引用:重庆市黔江新华中学校2019-2020学年高一下学期期中数学试题
名校
6 . 在平面四边形
中,
,
,
,则
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfb4952fb4df340736bd8b9a10373946.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ceeb6ac7f248397e846f5b61fac6c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88c44f558705de3bcefcfc0ece96b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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2019-12-16更新
|
274次组卷
|
2卷引用:重庆市西南大学附属中学校2019-2020学年高三第四次月考数学(理)试题
名校
7 . 在
中,若
,点
,
分别是
,
的中点,则
的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e8c809cb743ceb4e59442fb2029275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c06aa28f4e4ee00cdf3c8e7847225ed.png)
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8 . 已知
的面积等于1,若
,则当这个三角形的三条高的乘积取最大值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e3fc39d2b508cc1cae769a5e7266c0.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e3fc39d2b508cc1cae769a5e7266c0.png)
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2019-09-18更新
|
4490次组卷
|
11卷引用:重庆市2021届高三上学期第二次预测性考试数学试题
重庆市2021届高三上学期第二次预测性考试数学试题2020年1月中学生标准学术能力诊断性测试诊断性测试理科数学试卷中学生标准学术能力诊断性测试2019-2020学年高三1月(一卷)数学(理)试题(已下线)专题01 少丢分题目强化卷(第二篇)-备战2021年新高考数学分层强化训练(北京专版)(已下线)专题4-2 正余弦定理与解三角形小题归类1-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)四川省泸州市泸县第四中学2022届高三三诊模拟考试理科数学试题(已下线)必刷卷01 (理)-2022年高考数学考前信息必刷卷(全国乙卷)苏教版(2019) 必修第二册 必杀技 第11章 解三角形 11.2 正弦定理 第11.2 节综合训练浙江省名校协作体2019-2020学年高三第一学期第一次联考数学试题黑龙江省鹤岗市第一中学2022-2023学年高一下学期期中数学试题(已下线)专题19 解三角形中的面积问题
名校
9 . 如图,
为
内一点,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/744d824921dbdfe961d73f8296efef84.png)
_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88da9311de287176c8701b565bd5d0b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/744d824921dbdfe961d73f8296efef84.png)
![](https://img.xkw.com/dksih/QBM/2018/11/22/2080957345808384/2081011987881984/STEM/46b10742bde948aca4c074b67421eb35.png?resizew=196)
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2018-11-22更新
|
520次组卷
|
2卷引用:【市级联考】】重庆市(区县)2019年普通高等学校招生全国统一考试11月调研测试卷数学(理)试题
名校
10 . 设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6595597d25112f247753397d25bf5080.png)
的内角
所对的边分别为
,已知
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6595597d25112f247753397d25bf5080.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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e21a20c4451e0ca33bb3108cee9373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1810555c0c28fe352841322b85bbc6.png)
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