名校
1 . 过抛物线
的焦点且倾斜角为45°的直线与抛物线交于A,B两点,若点A,B到y轴的距离之和为
,则p的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c2f156b05838deaae6a35acad242af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2023-03-24更新
|
2206次组卷
|
6卷引用:江苏省南京市临江高级中学2023届高三下学期二模拉练数学试题
名校
2 . 已知抛物线
,O为原点,F为抛物线C的焦点,点A,B为抛物线两点,满足
,过原点O作
交AB于点D,当点D的坐标为
,则p的值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cee097d4fe948c3d4f1b5c28b24adf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad20e2bc6576fc461419f8f138d26e7.png)
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2022-07-05更新
|
547次组卷
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3卷引用:江苏省木渎高级中学、苏苑高级中学2022届高三下学期联合适应性检测数学试题
名校
3 . 在平面直角坐标系
中,已知椭圆
左、右焦点分别为
,上顶点为
,离心率为
,
为椭圆上在第一象限内一点,记
的面积为
,
的面积为
.若
,则直线
的斜率为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aac988c37343cb0e2c0ae0238ccfa50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb41fbad48bc76a39f70e7ff3b797d69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9df1061c3ba5151ba2f7359acaf356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70a87481122e5e2714e1e25f85e248a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e12ec393bfe396cdfffcef8cf0c4ec56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/10/45b8af59-55a2-4e2e-8d61-4eba5ca4807b.png?resizew=160)
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2018-12-25更新
|
502次组卷
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2卷引用:【校级联考】江苏省前黄高级中学、溧阳中学2018-2019学年上学期第二次阶段检测数学试题
4 . 已知点
,
分别为线段
上的动点,且满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de966c316db1013defc56372fcf814e.png)
(1)若
求直线
的方程;
(2)证明:
的外接圆恒过定点(异于原点).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e91aee78b2293d162e117a7a15655a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a5e484dfef494d27bc35ae7b8cf75d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de966c316db1013defc56372fcf814e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c483745c2455e26d7e695f5727600ee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a090d241903d3f409644768e5127568e.png)
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2016-12-03更新
|
1040次组卷
|
8卷引用:2015届江苏省连云港、徐州、淮安、宿迁四市高三一模考试理科数学试卷