名校
解题方法
1 . 如图,在边长为3的等边三角形
中,
交
于点
点满足
,过
点的直线交
于点
,交
于点
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ed5ea3e7db5a6943f2915d32339709c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37c6c45c4d19365b7928d81365585040.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e447c27b2e2acf936fa64e3a13bef727.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/18/45aa1023-0595-4d51-9839-0f0b9e482450.png?resizew=141)
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名校
2 . 在
中,
的对边分别为
,已知
,若
有唯一解,则实数
的取值范围为_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7af7c5df749c6fa9bbe87faa72c66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88f2599ca8b6b683e57a82699c8b1ebb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c32f6a45b60872d6f7d347c3edea824.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa6361e919ac07ee6ed642556e1d1ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . 如图,风景秀美的宝湖公园有一颗高大的银杏树,某研究小组为测量树的高度,在地面上选取了
两点,从
两点测得树尖的仰角分别为
和
,且
两点间的距离为
,则这颗银杏树的高度为_________________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270800ba975e87235e8802a631e5f3a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c08094f72d5bd69246c453dd28e33d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5022abc6afd4deff13845419fa38312e.png)
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2024-04-15更新
|
404次组卷
|
2卷引用:宁夏银川市唐徕中学2023-2024学年高一下学期4月月考数学试卷
名校
解题方法
4 . 已知
的内角A、B、C对的边分别为a,b,c,
,D为边AC上一点,满足
且
,则
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d7bce5b3862e12e5c7d206c35052471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7836f32fe50cc85e092fde49899703b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b1ca356addf3fe6a51c33622a57405f.png)
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名校
解题方法
5 .
中,角
、
、
的对边分别为a、b、c,若
,则
的周长为__________ .
![](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/b8429a6c1f4886f40eaf4c87a8bccedd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2024-04-08更新
|
382次组卷
|
3卷引用:宁夏回族自治区银川一中2024届高三第三次模拟考试文科数学试题
名校
解题方法
6 . 若
满足约束条件
,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d708cb763716467219215cdc0782c0a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e10ee0fb467a839e860eea2bb3b9d1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ea614559b4ad922c275408102e7abe.png)
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2024-04-05更新
|
181次组卷
|
2卷引用:宁夏银川一中、昆明一中2024届高三下学期联合考试二模文科数学试卷
7 . 已知数列
满足
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9620357ea5be4037cfdccd09a27d3862.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e6cbbec0f900da8864d00e396893c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c073f700b5e9a28fe47c5081ca37cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9620357ea5be4037cfdccd09a27d3862.png)
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2024-04-05更新
|
677次组卷
|
2卷引用:宁夏银川市贺兰县第一中学2023-2024学年高二下学期第一阶段考试数学试卷
名校
解题方法
8 . 已知数列
的首项
,且
(
).
(1)求数列
的通项公式;
(2)若数列
的前
项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b191d2101c5a655ab069beff59ff05bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48254411ff33cc418c8baadf2d51de0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6828a1cf75f19bb74a0e0490bd65c168.png)
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名校
解题方法
9 . 已知实数
,
满足约束条件
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defdb4e1b6ec8cbc72f9d03b6ca18171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61e3da18d31497e7c2ce5217d139f80e.png)
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解题方法
10 . 设
的内角A,B,C所对的边分别为a,b,c,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8603ae7a8417d09605fa706e31d3dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c530bf4caa9e3af6de7b640646a74ba7.png)
.
(1)求边c的值;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8603ae7a8417d09605fa706e31d3dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c530bf4caa9e3af6de7b640646a74ba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4ccac324b04d0aba1189652f358e0d.png)
(1)求边c的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2024-03-31更新
|
446次组卷
|
2卷引用:宁夏银川市第二中学2023-2024学年高一下学期月考一数学试卷