1 . 已知数列满足
,
.
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cf1da18d91f7c98086553d157d1a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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2024-03-26更新
|
1620次组卷
|
2卷引用:江西省五市九校2024届高三下学期2月开学联考数学试卷
解题方法
2 . 已知等差数列中,
,
.求
的通项公式;
您最近一年使用:0次
2024高一下·全国·专题练习
3 . 某海轮航行的速度大小为30海里/小时,在A点测得海面上油井P在南偏东
,向北航行40分钟后到达B点,测得油井P在南偏东
,海轮改为北偏东
的航向再行驶80分钟到达C点,求P,C间的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
您最近一年使用:0次
名校
4 . 已知集合
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d273d70dca1c182aa5dfb50424f8cd7c.png)
(1)求
,
;
(2)定义
,求
,
;
(3)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d3cc7bec395d952e607aeca3c40c23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6762b59980645757b409574003f8f5ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d273d70dca1c182aa5dfb50424f8cd7c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a964b99d839b459f7f14af1d512edcf4.png)
(2)定义
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de6d5ed18f9757503865988c9257ef61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9e460c144f7a2141d2df0308b125f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06430886275f5ad62bcda62fce691e99.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e968937d457d9e2237b401077ff224a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024高一·上海·专题练习
解题方法
5 . 记
的内角
,
,
的对边分别为
,
,
,已知
,证明:
;
![](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/e289885f61af21a6a78d68cd1e7588c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa8d75a6638e08eedbff8662267da6f.png)
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2024高一·上海·专题练习
解题方法
6 . 在中,
,求
的值
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2024高一·上海·专题练习
解题方法
7 . 在
中,角
,
,
所对的边分别为
,
,
,且
,求角
.
![](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/4747643e51a83e476f09146ba7669fe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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2024高一下·江苏·专题练习
8 . 如图,若小河两岸平行,为了知道河对岸两棵树C,D(CD与河岸平行)之间的距离,选取岸边两点A,B(AB与河岸平行),测得数据:
,
,
,
,试求C,D之间的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49caee3119b29a99e62cbe419fb261fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/009b72f07fb96004839468ad6d93c997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ff4b7af73612cd24dfa5a97b2408f7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6651d5001a305f6cd288804425afa174.png)
![](https://img.xkw.com/dksih/QBM/2024/2/18/3435945492611072/3456737573953536/STEM/925d109b2ab140388517d7c97b906b56.png?resizew=127)
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2024高一下·江苏·专题练习
9 . 已知中,
,求
.
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