名校
1 . 已知
,
,
分别是
内角
,
,
的对边,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aeca7b068a5b815e285455ee679b5a4.png)
,
,则
周长的最小值为_______ .
![](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/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/9aeca7b068a5b815e285455ee679b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0040305eb77da9b74b2e12c354da016f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffce8ee90f1a3aa64ae5444dffb6e0cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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2019-07-04更新
|
555次组卷
|
3卷引用:山西省太原市2018-2019学年高三模拟试题(二)数学(理)试题
名校
解题方法
2 . 已知
分别是
的内角
的对边,
,且
,则
周长的最小值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](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/0a52a56911ecc4926ad468a4de2fb8a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7359fc2c09994eedb4447056ee7ab6cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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2019-07-02更新
|
2336次组卷
|
3卷引用:2019年山西省太原市高三模拟试题(二)数学(文史类)试题
2019年山西省太原市高三模拟试题(二)数学(文史类)试题河北省衡水中学2019-2020学年高三上学期六调数学(文)试题(已下线)第六章 6.4.3 第3课时 正弦定理和余弦定理的综合应用(备作业)-【上好课】2020-2021学年高一数学同步备课系列(人教A版2019必修第二册)
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3 . 在锐角
中,内角
所对的边分别是
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd7539d892f1aedfe31d399312f980b.png)
__________ .
的取值范围是__________ .
![](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/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8c65bea2c80af038768b74250c694e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd7539d892f1aedfe31d399312f980b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
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2019-05-07更新
|
2170次组卷
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5卷引用:山西省大同市第一中学2019-2020学年高三下学期2月网上月考(开学)数学(文)试题
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4 . 已知
的三个内角
,
,
的对边分别为
,
,
,若
,且
,则
的取值范围为__________ .
![](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/2bb275bed911a7dd2ac07726ea5b21a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd5b9bbd3d22bd2cef53dd4b9691257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f4fb37aff5f48cc6d46934eb7e675f8.png)
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2018-06-14更新
|
2954次组卷
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4卷引用:山西省太原市第五中学2020届高三下学期3月摸底数学(理)试题
山西省太原市第五中学2020届高三下学期3月摸底数学(理)试题【全国百强校】河北省石家庄二中2018届高三三模数学理试题(A)(已下线)考点24 正弦定理、余弦定理(考点专练)-备战2021年新高考数学一轮复习考点微专题(已下线)数学-2022届高三下学期开学摸底考试卷B(文科)(新课标专用)
5 . 在
中,
,且在边
上分别取
两点,点
关于线段
的对称点
正好落在边
上,则线段
长度的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd96b9fc88d89fbe2e794637c7e8702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
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6 . 在
中,角
所对的边分别为
若对任意
,不等式
恒成立,则
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9178fc8b5d65aa75fa9196294a0db7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a35cd72c843bfc5bb4af8d6602e6927.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781277bec874ecdb6227652e29108e00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f71e1a5c60a26f1585d9b81131cfcbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a7702820111a0536e3389fefa997c79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392ece1dfbd106f88c21de066c889345.png)
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2018-04-27更新
|
1515次组卷
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7卷引用:【全国市级联考】浙江省杭州市2018届高三第二次高考科目教学质量检测数学试题
【全国市级联考】浙江省杭州市2018届高三第二次高考科目教学质量检测数学试题山西省怀仁市2021届高三上学期期末数学(文)试题(已下线)第17练 平面向量的基本定理及坐标表示-2021年高考数学(文)一轮复习小题必刷(已下线)第18练 平面向量的基本定理及坐标表示-2021年高考数学(理)一轮复习小题必刷江西省重点中学盟校2022届高三第一次联考数学(理)试题(已下线)考点09 解三角形-1-(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)江苏省宿迁市泗洪县第一高级中学2022-2023学年高一下学期期中数学模拟试题
7 . 已知点
是
的内心,
,
,则
面积的最大值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7502eee6f33e8c940dec63ab6473c52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4962343ca7d065aee473dbf79eb8d3c5.png)
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10-11高三·浙江·阶段练习
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8 . 已知圆心角为120° 的扇形AOB半径为
,C为
中点.点D,E分别在半径OA,OB上.若CD2+CE2+DE2=
,则OD+OE的取值范围是__
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
![](https://img.xkw.com/dksih/QBM/2012/2/15/1570741195907072/1570741201313792/STEM/3de7723c4f6d4ccc987fa2396a5dbac7.png?resizew=136)
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