1 . 在平面直角坐标系
中,设点列
都在函数
的图象上,若
所在直线的斜率为
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b12e933f575f029e444133844fdce6e8.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544e2e84cf521cb4facccf4683b581dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5943f72b1c38284593db57567018c605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fe33ffb69050c0627f8eaba1131fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/249a976e88133f3b3733f09137cf5c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b12e933f575f029e444133844fdce6e8.png)
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2020-12-07更新
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2卷引用:河南省开封市2021届高三第一次模拟考试文科数学试题
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2 . 已知椭圆
的左焦点为
,点
在椭圆上且在
轴的上方.若线段
的中点在以原点
为圆心,
为半径的圆上,则直线
的斜率是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb4717d7fa6d522090c5e949f650bd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8b3616d8d33f54ddac1c485a95a7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
A.![]() | B.![]() | C.![]() | D.2 |
您最近一年使用:0次
2020-01-11更新
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8卷引用:河南省信阳市浉河区信阳高级中学2023届高三三模文数试题