名校
1 . 在平面直角坐标系
中,抛物线
:
,直线
与抛物线
交于
,
两点.
![](https://img.xkw.com/dksih/QBM/2018/3/23/1908502077620224/1911955471974400/STEM/18795fc6810949199473d5f9a6075f9a.png?resizew=148)
(1)若直线
,
的斜率之积为
,证明:直线
过定点;
(2)若线段
的中点
在曲线
:
上,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/2018/3/23/1908502077620224/1911955471974400/STEM/18795fc6810949199473d5f9a6075f9a.png?resizew=148)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602baac86c2b1668ecdfadc8a5948885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c06747fea7008a56945fca7a3290e4b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
2018-03-28更新
|
768次组卷
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4卷引用:【全国百强校】广东省湛江第一中学2018-2019学年高二上学期第二次大考数学(理)试题
【全国百强校】广东省湛江第一中学2018-2019学年高二上学期第二次大考数学(理)试题山东省济南市2018届高三第一次模拟考试数学(理)试题(已下线)3.3.2 抛物线的简单几何性质(第1课时)(第2课时)(练习)(已下线)3.3.2 抛物线的几何性质(课堂培优)-2021-2022学年高二数学课后培优练(苏教版2019选择性必修第一册)