已知点
,点
在曲线
:
上.
(1)若点
在第一象限内,且
,求点
的坐标;
(2)求
的最小值.
![](https://img.xkw.com/dksih/QBM/2014/1/20/1571488995639296/1571489001136128/STEM/7980435ee7f34a1283fdfae381e9f357.png)
![](https://img.xkw.com/dksih/QBM/2014/1/20/1571488995639296/1571489001136128/STEM/1e0e33b752a54827988dd05a98683a50.png)
![](https://img.xkw.com/dksih/QBM/2014/1/20/1571488995639296/1571489001136128/STEM/8af6b050afea4b118f554fab0f888de6.png)
![](https://img.xkw.com/dksih/QBM/2014/1/20/1571488995639296/1571489001136128/STEM/8871d7fb892d4df0a94df18190d91e7f.png)
(1)若点
![](https://img.xkw.com/dksih/QBM/2014/1/20/1571488995639296/1571489001136128/STEM/1e0e33b752a54827988dd05a98683a50.png)
![](https://img.xkw.com/dksih/QBM/2014/1/20/1571488995639296/1571489001136128/STEM/b892bfb59aa24625b05cdeb3a8fe3e3c.png)
![](https://img.xkw.com/dksih/QBM/2014/1/20/1571488995639296/1571489001136128/STEM/1e0e33b752a54827988dd05a98683a50.png)
(2)求
![](https://img.xkw.com/dksih/QBM/2014/1/20/1571488995639296/1571489001136128/STEM/1a1934bdc652480abe598d0f974c7025.png)
13-14高三上·上海普陀·阶段练习 查看更多[1]
(已下线)2014届上海市普陀区高三上学期12月月考文科数学试卷
更新时间:2016-12-02 16:25:28
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解答题-问答题
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解题方法
【推荐1】已知直线
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(1)求直线
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(2)设F是抛物线的焦点,
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(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)设F是抛物线的焦点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/967eccd4d0ce9e659291edc9d8fa80b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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【推荐2】已知抛物线E:
的焦点为F,圆C:
,点
为抛物线上一动点
当
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求抛物线E的方程;
若
,过点P作圆C的两条切线分别交y轴于M,N两点,求
面积的最小值,并求出此时点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f538624be89d2fc47e51a49d61b46286.png)
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【推荐1】设抛物线
:
(
)的焦点为
,点
(
)在抛物线
上,且满足
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(1)求抛物线
的标准方程;
(2)过点
的直线
与抛物线
交于
,
两点,分别以
,
为切点的抛物线
的两条切线交于点
,求三角形
周长的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b35f0b940c8422ef47edc3b7ce55e47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
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