解题方法
1 . 在
中,角
所对的边分别为
若
且
的外接圆的半径为
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/7132c2d8b2ff504e6c2ba36c4f6dcfaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a052fa2f7556dc5949c42389021a191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e76e6efb9da6fc4294e6d7b2076188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2 . 在平面四边形
中,
,
,
,
,则四边形
的面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab4f318fd596282e1d965ab29bbf362f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59281d3136f2c67c078d98842171224d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88c44f558705de3bcefcfc0ece96b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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2024-06-03更新
|
1349次组卷
|
3卷引用:广西南宁市第三中学2023-2024学年高一下学期月考(三)数学试题
名校
解题方法
3 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a903a4ed206b254d1955cc23838a0e6d.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65efbd43128898e3c167145fda70518c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a903a4ed206b254d1955cc23838a0e6d.png)
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解题方法
4 . 在
中,若
,
,
,三角形有唯一解,则整数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3a0f919877d3a787626ca018cec46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11336f19291874ba725328fd54839f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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5 . 某货轮在
处看灯塔
在货轮北偏东
,距离为
nmile;在
处看灯塔
在货轮的北偏西
,距离为
nmile.货轮由
处向正北航行到
处时,再看灯塔
在南偏东
,则灯塔
与
处之间的距离是__________ nmile.
![](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/b79fb11b8c808bb9d9a8e1f4c53cddd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f52f128086257ab7513889dbf6c7550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996bf3d35b6763cbc1a423b13a9df2dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6093eebca8f3ff82ce9298feb197e955.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/260200d547998bcac50a4a491382e7f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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2024-04-19更新
|
255次组卷
|
3卷引用:广西壮族自治区河池市河池十校联体2023-2024学年高一下学期第一次联考(4月)数学试题
6 . 在
中,角A,B,C的对边分别是a,b,c,若
,
,且
有两解,则
的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/885541dcac051db2f04a064e18153ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a36ec31cfd615abfbee3ed2f4a1d8883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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7 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e117b52f9e491bebfc7c905795ae31ce.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0df9646380872b896d84f13c693a9ed2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e117b52f9e491bebfc7c905795ae31ce.png)
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2024-04-10更新
|
194次组卷
|
2卷引用:广西钦州市2023-2024学年高一下学期期中考试数学试卷
8 . 已知函数
的最大值是3,
的图象与y轴的交点坐标为
,其相邻两个对称中心的距离为2,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a762def362ebe9822c9b1a185bba2a03.png)
_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87f3648879b611c8969372ac045f159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a762def362ebe9822c9b1a185bba2a03.png)
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2024-03-29更新
|
253次组卷
|
2卷引用:广西贺州市2023-2024学年高一上学期期末质量检测数学试题
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9 . 已知扇形的圆心角为
,其周长是
,则该扇形的面积是
.
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2024-03-28更新
|
540次组卷
|
2卷引用:广西示范性高中2023-2024学年高一下学期3月调研测试数学试卷
10 . 已知扇形的面积为
,圆心角弧度数为
,则其弧长为________
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e8ba4b373357ec5f87428b1d012d9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9521abf0ff814208c82cc6d3bf03acb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
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