名校
1 . 已知点
及抛物线
上一动点
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62aaf25e3a2e50dcadfb5953c7d14c66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ac2a34b57c479ea297423ad2547bca8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
2 . 已知抛物线
的焦点为
,点
为抛物线上的动点,点
为其准线上的动点,当
为以点
为直角顶点的等腰直角三角形时,其面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/130b889b67b51b3ecc5d855ab53987c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-09-13更新
|
909次组卷
|
2卷引用:山东省栖霞市第一中学2018届高三4月模拟考试数学(理)试题
3 . 抛物线
的焦点为
,准线为
,
为抛物线
上一点,且
在第一象限,
点
,线段
与抛物线
交于点
,若
的斜率为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bdd3be8e58a9150e5b1e2a43988fd82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d5147cea4c9ce855074864fe54506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac3393a57df94a5944642bb8a5d4c02.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-05-16更新
|
490次组卷
|
2卷引用:山东省日照市2017届高三下学期第二次模拟考试数学(理)试题
4 . 已知抛物线
焦点为
,直线
过焦点
且与抛物线
交于
两点,
为抛物线
准线
上一点且
,连接
交
轴于
点,过
作
于点
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b758f0df5dd6de307b07d9118714761.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9cc822ba36c1cca6f34c6e6c1c689c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae67946dd9fdfbba2f363f8da98408d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7384511d0b3717bd2d56fed45d236760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b758f0df5dd6de307b07d9118714761.png)
您最近一年使用:0次
2017-03-31更新
|
548次组卷
|
5卷引用:2017届山东省平阴县第一中学高三3月模拟考试理数试卷
5 . 在直角坐标系
,椭圆
的左、右焦点分别为
.其中
也是抛物线
的焦点,点M为
在第一象限的交点,且
.
(Ⅰ)求椭圆
的方程;
(Ⅱ)若过点D(4,0)的直线
与
交于不同的两点A、B,且A在DB之间,试求△
与△BOD面积之比的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7085467b09077e57aa22df89a36f9c0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb2cc99863f9e86f64ff78c7fbdd8e16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a900ebb0954885ecc575ee244dec0ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9511bc9eafbde1254bdeef5480654ca6.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(Ⅱ)若过点D(4,0)的直线
![](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/024d10a8dba031c8139aba9ab02a0618.png)
您最近一年使用:0次
10-11高三·湖北荆州·阶段练习
6 . 已知点M是抛物线
上的一点,F为抛物线的焦点,A在圆C:
上,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f252c0efacf9580f16f9255bb4196f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a2e93d1cad52d2190c0a39832c477b.png)
您最近一年使用:0次
2016-12-01更新
|
1129次组卷
|
6卷引用:2012届山东省曲阜一中高三第一次摸底考试理科数学
(已下线)2012届山东省曲阜一中高三第一次摸底考试理科数学(已下线)2012届湖北省荆州中学高三第一次教学质量检测理科数学(已下线)2013-2014学年四川省成都树德中学高二下学期期中考试理科数学试卷(已下线)2013-2014学年四川省成都树德中学高二下学期期中考试文科数学试卷湖北省孝感一中、应城一中等五校2017-2018学年高二上学期期末联考数学(文)试题上海市西外2018-2019学年高二上学期期末数学试题