20-21高一·浙江·期末
解题方法
1 . 如图,过抛物线
的焦点F的直线分别交抛物线于
两点交直线
于点P,若
,
,则
的值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb398137779190b35492d9f06d5fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd23837175365442869a4263776e4baa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e684cdecf06e57614827b9b03e42fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://img.xkw.com/dksih/QBM/2021/1/15/2636498124529664/2636568211103744/STEM/70b60605-1a5d-4e74-8b51-f5ca0afdf6b3.png?resizew=287)
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2 . 已知抛物线
的焦点为F,M为抛物线上动点,当
最小时,点M的坐标是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b072ff6d1b83232bebd7d4709ffba4ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/124fc4ce837699e7e36bd77ce6331e30.png)
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19-20高一·浙江杭州·期末
3 . 已知抛物线
的焦点为F,O为坐标原点,设M为抛物线上的动点,则
最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8def8adcf3a946ff52ddb446fcc822e.png)
您最近一年使用:0次
名校
解题方法
4 . 若四棱锥
的侧面
内有一动点Q,已知Q到底面
的距离与Q到点P的距离之比为正常数k,且动点Q的轨迹是抛物线,则当二面角
平面角的大小为
时,k的值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d294d69caac577339f11f477b2047e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9a369efbdd774d3dc4dd9489396023.png)
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2020-03-26更新
|
404次组卷
|
3卷引用:【新东方】双师119
名校
解题方法
5 . 已知抛物线
,焦点记为
,过点
作直线
交抛物线于
,
两点,则
的最小值为________ .
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7203604385ef3065b52149d740959b27.png)
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2020-06-08更新
|
620次组卷
|
4卷引用:【新东方】杭州新东方高中数学试卷326
(已下线)【新东方】杭州新东方高中数学试卷326浙江省宁波市镇海中学2018届高三下学期5月模拟考试数学试题2020年浙江省名校高考仿真训练卷(三)浙江省宁波市镇海中学2020届高三下学期5月模拟数学试题
名校
解题方法
6 . 过抛物线
的焦点
的直线
与抛物线
交于
两点,与其准线交于点
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f6ea51b144994c9fef54e970d28fec.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147378a5bf643f299538fe3d304c4b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f6ea51b144994c9fef54e970d28fec.png)
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2018-02-23更新
|
597次组卷
|
2卷引用:浙江省杭州市学军中学2016-2017学年高一上学期12月竞赛测试(二)数学试题