1 . 如图,抛物线
上的点与
轴上的点构成等边三角形
,
,
,
其中点
在抛物线上,点
的坐标为
,
,猜测数列
的通项公式为________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef469c7b7cb9945b984222381b9c000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76327057b9c0f1487eff161501f635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c96af5f255f4200bf471b86db15ece3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da964066811a1a61bc647c5c9d2608fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07096af3b99fd1cb11c31f19a2c6408e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15520cf5be7c2685975aac51bc99ac4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602a8e9e98de8c6a6835d1a9fbba467c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72fb378d6bf91902efa15881985c5e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086e9b14c35ef3c57b20f5e952ebf9c8.png)
![](https://img.xkw.com/dksih/QBM/2021/8/22/2791798828417024/2818425782640640/STEM/265f713e-8948-446c-a2ff-f4d1ba3076ea.png?resizew=250)
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2021-09-29更新
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824次组卷
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5卷引用:辽宁省锦州市2021-2022学年高二下学期期末考试数学试题
辽宁省锦州市2021-2022学年高二下学期期末考试数学试题广东省深圳市宝安区2021-2022学年高二上学期期末数学试题(已下线)专题7.18 数列与解析几何的综合-2022届高三数学一轮复习精讲精练(已下线)专题5数列运算综合闯关 (提升版)广东省东莞市石竹实验学校2022-2023学年高二下学期开学学情调查数学试题
2 . 已知抛物线C:
焦点为F,点P为其准线上一点,M是直线PF与抛物线C的一个交点,若
,则直线PF的斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294b85c50741fbeeeb3f52f012434afa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1395a0f7dcf7dfabc2a77e706b389045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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