名校
1 . 已知经过点
的椭圆
的上焦点与抛物线
焦点重合,过椭圆
上一动点
作抛物线
的两条切线,切点分别为
.
(1)求
和
的方程;
(2)当
在椭圆
位于
轴下方的曲线上运动时,试求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a50d837c971e96e8c67d81838e5a893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19cd274be8acd820404b445523d0b3d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36ef27c7bdf234b2dc0f5941cc6ebd9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e8c7968d57d2a20065a7cb15c9b4eb.png)
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2023-07-18更新
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712次组卷
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2卷引用:四川省德阳市2022-2023学年高二下学期期末数学理科试题