名校
解题方法
1 . 在
中,角
的对边分别为
,已知
,点
是
的中点,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/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad09921d9904335a83078262ce62a473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c437e29e8f3a98454b31f572dbe586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2 . 已知
三个内角
,
,
所对的边分别为
,
,
,若
,
,
成等比数列,
,
,
成等差数列,则:(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
__________ ;(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e88de527b00d11a61b70679595630975.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/79b01adc561735ff5be9bb97266918f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32e2f2d7147cf1699fbfdef9cf4af74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21bdea15993d7447c9bee28f7318bc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32e2f2d7147cf1699fbfdef9cf4af74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e88de527b00d11a61b70679595630975.png)
您最近一年使用:0次
2020-04-27更新
|
496次组卷
|
3卷引用:广西南宁市2022届高三5月模拟考数学(理)试题
名校
3 . 设a,b,c分别为三角形ABC的内角A,B,C的对边,已知三角形ABC的面积等于
,则内角A的大小为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4622649abe7c3b1b11fb11bc37ce0116.png)
您最近一年使用:0次
2020-04-15更新
|
381次组卷
|
5卷引用:广西南宁市2019-2020学年高三毕业班第一次适应性测试数学(文)试题
名校
4 . 下列命题正确的是________ (写出所有正确命题的编号)
①命题“若
,则
且
”的否定是“若
,则
且
”
②已知函数
的图象关于直线
对称,函数
为奇函数,则4是
一个周期.
③平面
,
,过
内一点
作
的垂线
,则
.
④在
中角
所对的边分别为
,若
,则
成等差数列.
①命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9cdea1e995c59e5d3225acad8b4d3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f600cfe06ce3b664321868968371bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96bc2eeaca8a8ce4bcce2bff011a11bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b43f0f4dccb727c6a655ff483f5f843d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ec66b3436594131a07fee9e3fea6d9f.png)
②已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ed2dd8a797d6da9c89e858aed9a7da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
③平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b707f5ee4fbb2e637c65fbc6d8ed03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b610e3c5b3d78a5730e7f3d736ac28.png)
④在
![](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/b3d8bfe22f65d2ea1123905cd1815912.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
您最近一年使用:0次
名校
解题方法
5 . 已知点
分别是圆
及直线
上的动点,
是坐标原点,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/524446f4b63aa9e9bf873f061e830a22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90a93a0f50e7c070a9b03ad051178758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89e07c5f7b2d82e6378675430c4702a8.png)
您最近一年使用:0次
名校
6 . 在平面直角坐标系xOy中,圆
与x轴,y轴的正方向分别交于点A,B,点P为劣弧AB上一动点,且
,当四边形OAQP的面积最大时,
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30fd8e58818cefd65e8926e40e6a4df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587aad5dd94a50010e5f8af193dfd910.png)
您最近一年使用:0次
2020-02-02更新
|
467次组卷
|
4卷引用:广西南宁市第三中学2019-2020学年高三期末大联考文科数学试题
广西南宁市第三中学2019-2020学年高三期末大联考文科数学试题2020届河北省衡水中学全国高三期末大联考文数试卷(已下线)第五单元 平面向量( B卷 滚动提升检测)-2021年高考数学(文)一轮复习单元滚动双测卷湖北省恩施州2022届高三上学期期末文科数学试题
名校
7 . 已知
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30dbc1994c809d2289b400e7319bda3f.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf5b5d6ad24be7eb370869fcb60b62d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6eec7d75a66a4407631f75320bb8b15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30dbc1994c809d2289b400e7319bda3f.png)
您最近一年使用:0次
2019-09-27更新
|
1683次组卷
|
7卷引用:广西南宁市第二中学2021届高三上学期数学文科10月份考试试题
名校
8 . 已知
的内角
、
、
的对边分别为
、
、
,若
,
,且
的面积是
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.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/baf623a808eaaef1acef2bd44d92d34a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b36ede13bb209e2bd74a5a276dfd6ad6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
2019-09-23更新
|
1521次组卷
|
4卷引用:广西南宁三中2020届高三数学(理科)考试四试题
名校
9 . 如图所示,在平面四边形
中,
,
,
,
,则四边形
的面积的最大值为___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/5a2e8756-ba27-4e68-bafc-5ebffb4c741b.png?resizew=133)
您最近一年使用:0次
2019-04-28更新
|
2239次组卷
|
6卷引用:2019届广西南宁市第二中学高三最后一模数学(文)试题
名校
10 . 在
中,角
,
,
的对边分别为
,
,
,若
,
是锐角,且
,
,则
的面积为______ .
![](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/234bba0adff480e85dfab5ff8734aa0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21143d45f8a1eec5a18f3b82c78ac217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acb4162c72ae8f072ce33136a21c2b47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2019-03-07更新
|
4961次组卷
|
10卷引用:广西南宁市第二中学2021届高三上学期数学文科10月份考试试题
广西南宁市第二中学2021届高三上学期数学文科10月份考试试题【校级联考】河南名校联盟2018-2019学年高三下学期2月联考文科数学试题【校级联考】河南名校联盟2019届高三下学期2月联考数学(理科)试题(已下线)2019年3月25日 《每日一题》理科二轮复习 三角函数与解三角形(已下线)2019年3月25日 《每日一题》文科二轮复习 三角函数与解三角形【校级联考】山东省实验中学等四校2019届高三联合考试数学文科试题【全国百强校】四川省双流中学2019届高三第一次模拟考试数学(文)试题2020届湖南名师联盟高三上学期第一次模拟数学(文)试题江西省赣州市会昌中学2020-2021学年高一下学期第一次月考数学(理)试题重庆市杨家坪中学2020-2021学年高一下学期第一次月考数学试题