名校
1 . 已知
中,内角A,B,C的对边分别为a,b,c,
,
,则
的面积为______ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce7423a3ee85dc650b8c5d6a693b393.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d09d3176074ac8b37cccdea181f1dffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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2019-12-12更新
|
359次组卷
|
4卷引用:上海市交大附中2018-2019学年高一下学期期末数学试题
2 . 在
中,角
、
、
所对的边分别为
、
、
,若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.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/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/f08ce80e91fdf435a8e3ec05be990e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60b97bb18e5ca34d22b5e827316a122a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c58030910da36cd326bb8a6a0746ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
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2019-12-08更新
|
698次组卷
|
5卷引用:2018年上海市复旦附中高三5月三模数学试题
3 . 在
中,已知
,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c940b02e3be66bab4cd9be5e56098476.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
4 . 在
中,已知
,则
=______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/501dcf57f41b8b29a43b3dbdd1a56098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次
2019-12-07更新
|
165次组卷
|
2卷引用:上海市宝山区罗店中学2017-2018学年高一下学期期中数学试题
名校
5 . 某小区打造休闲场地,将一块直角三角形空地ABC用一条长为16m的道路MN分成两部分(点M在边AB上).分别种植花卉和铺设草坪,其中花卉面积为
,草坪面积为
,且
,已知
,求
的最大值(本题中道路都指线段).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/938fd4a3f814db60717cdba9582d0485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc24ba8903f857fb136fd59a4871b8cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
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2019-12-03更新
|
123次组卷
|
2卷引用:上海市七宝中学2016-2017学年高三下学期5月预测调研数学试题
名校
6 . 在
中,内角
,记
,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c08bf0a121ade364913ff0d231f0315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9e0f7fd210c8ebc45692f5be03db7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc6bff49edc879c6d15ca3e1ed77199.png)
您最近一年使用:0次
2019-12-03更新
|
135次组卷
|
2卷引用:上海市七宝中学2016-2017学年高三下学期5月预测调研数学试题
名校
7 . 已知两个不相等的平面向量
满足
,且
与
的夹角为120°,则
的最大值是______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e578d000fbcaf01ed05d4709578bad1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c2ebbee6f744bce7a5720d61a61926.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cbf841c5400eaf3504280d1cb9350cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f72272fd5fc4b81f805ae2d1e38a3b65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df8f569ac1528008b21404e5ed65540.png)
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名校
8 . 在
中,角
的对边分别为
,若面积
,则角![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd404f1566efc32f8b9ea0928c42b747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
您最近一年使用:0次
名校
9 . 在锐角
中,角
、
、
所对的边为
、
、
,若
的面积为
,且
,
,则
的弧度为__________ .
![](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/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
您最近一年使用:0次
名校
10 . 在
中,角
所对的边为
,若
,且
的外接圆半径为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
您最近一年使用:0次