求下列双曲线的标准方程.
(1)与双曲线
-
=1有公共焦点,且过点(3
,2)的双曲线;
(2)以椭圆3x2+13y2=39的焦点为焦点,以直线y=±
为渐近线的双曲线.
(1)与双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cfd65b37091a2ed21b8d0fba41c8ea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/275eff9016bc53ed260e54dc2932bc53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(2)以椭圆3x2+13y2=39的焦点为焦点,以直线y=±
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1020afcfd8b7de38dfd825373b86bdea.png)
更新时间:2020-03-18 17:39:01
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解题方法
【推荐1】已知双曲线
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(1)求双曲线C的标准方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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【推荐2】根据下列条件求双曲线的标准方程.
(1)经过点
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(2)经过点
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有相同的焦点.
(1)经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc547c67d24d7d1849627eef0b393a0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b91d650c2fc1a741fabdb333b09aeb6.png)
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(2)经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3de9ec3ec2044ae298ea1dac2c5d3bd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311f4e2e5bdfbb147f32a6421c80a8f7.png)
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【推荐2】根据下列条件求双曲线的标准方程.
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(2)经过点
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(1)双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/542df92a66cf4e30d5abbde985606ba9.png)
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(2)经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab17fd1c6646342ab0ee688876be39ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311f4e2e5bdfbb147f32a6421c80a8f7.png)
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【推荐1】已知双曲线
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【推荐2】在平面直角坐标系
内,已知双曲线
:
(
),
(1)若
的一条渐近线方程为
,求
的方程;
(2)设
、
是
的两个焦点,
为
上一点,且
,△
的面积为
,求
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(3)若直线
与
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两点,且坐标原点O始终在以AB为直径的圆内,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c55e01348f3d583dfd8acfdb5863dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
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(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9944bcd0c383c1d3d04c6ab90cacced9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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