设双曲线
的方程为
.
(1)求
的实轴长、虚轴长及焦距;
(2)若抛物线
的焦点为双曲线
的右顶点,且直线
与抛物线
交于
两点,若
(
为坐标原点),求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c47a8427546e894f92d0fd52a7e3c5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691a141c4c7962743d3541008e1c9ade.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6579325bab34b9fb421da9870dc483.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2018-01-03 16:14:09
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相似题推荐
解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐1】已知双曲线
的一条渐近线为
,且双曲线
的虚轴长为
.
(1)求双曲线
的方程;
(2)记
为坐标原点,过点
的直线
与双曲线
相交于不同的两点
、
,若
的面积为
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c8091d78595c42d437ff5766431a8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cd48cdef1cbc81392acd38a6cad6530.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解答题-问答题
|
适中
(0.65)
名校
【推荐2】已知双曲线
的中心为原点
,焦点在
轴上,直线
是
的一条渐近线, 且虚轴长为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
(1)求
的标准方程
(2)记
的左右焦点为
,点
在双曲线右支上,若
的周长为
,求
的大小
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bdeeb6f5e38e3464c357d00839a6ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f98254a6193566587a70c7d95fdabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc6fc9d4be192bf91fae0bea46a624a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94fe48bf7af022ecbbe13833fdcc2c8.png)
您最近一年使用:0次
【推荐1】设点A是抛物线
上到直线
的距离最短的点,点B是抛物线上异于点A的一点,直线AB与l交于P,过点P作y轴的平行线交抛物线于点C.
(1)求点A的坐标;
(2)求证:直线BC过定点;
(3)求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c1053ca52f2879c7f8bb8a40dceb3a2.png)
(1)求点A的坐标;
(2)求证:直线BC过定点;
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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解答题-证明题
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适中
(0.65)
【推荐2】已知抛物线C:y2=2px(p>0),曲线M:x2+2x+y2=0(y>0).过点P(-3,0)与曲线M相切于点A的直线l,与抛物线C有且只有一个公共点B.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/3/7ee91c12-74b8-4af5-b8d6-7743add52977.png?resizew=376)
(Ⅰ)求抛物线C的方程及点A,B的坐标;
(Ⅱ)过点B作倾斜角互补的两条直线分别交抛物线C于S,T两点(不同于坐标原点),求证:直线ST//直线AO.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/3/7ee91c12-74b8-4af5-b8d6-7743add52977.png?resizew=376)
(Ⅰ)求抛物线C的方程及点A,B的坐标;
(Ⅱ)过点B作倾斜角互补的两条直线分别交抛物线C于S,T两点(不同于坐标原点),求证:直线ST//直线AO.
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