1 . 已知一组动直线方程为
.
(2) 若直线与
轴正半轴,
轴正半分别交于点
两点,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d3441c68c9913185cac23980ff0f2cb.png)
(1) 求证:直线恒过定点,并求出定点的坐标;
(2) 若直线与
![](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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd2981bf2261343f905ec1b5355a3c4.png)
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2018-10-05更新
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2卷引用:青海省海东市平安区第二中学2019-2020学年高二上学期10月月考数学试题