名校
解题方法
1 . 在平面直角坐标系
中,已知双曲线
经过点
,点
与点
关于原点对称,
为
上一动点,且
异于
,
两点.若
的重心为
,点
,则
的最小值______ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6e7dd53895e16d6897807a2896fc6a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c179fe7eff7abfdd092b63c9c1b82d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/c5db41a1f31d6baee7c69990811edb9f.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/8b40db0ba5eceb037bac99acf33f31b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e7915cbe166f565480b4cd8e65064d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7d23d4f032debf57dcb7f40d3c9c53.png)
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名校
2 . 已知双曲线
经过点
,则C的渐近线方程为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ce1534a372db7666711443631c4ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80991c1f0c963104740e50cfff6f29a8.png)
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2024高三·全国·专题练习
解题方法
3 . 设双曲线C经过点(2 , 2), 且与
具有相同渐进线, 则C的方程为__________ ;渐进线方程为____________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfb1b9a8400b9ceb7a2e7497c8e5736c.png)
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解题方法
4 . 已知双曲线
过点
,且渐近线方程为
,则
的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c443ec3bc947c6dbcfbe152759adf682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10273b05ad8210d8db07639c4d149fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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解题方法
5 . 已知双曲线
(
,
),给定的四点
、
、
、
中恰有三个点在双曲线
上,则该双曲线
的离心率是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5c2e64358e0ec7aa142c336d970306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93ce9692327f340625ba6882288b2786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f33348b552183b3022bcd911c4f1f5c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8b0345320a6cb4983f0c0e5141861b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04bfd27fa9819bb579918f49a3538e2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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名校
6 . 一双曲线过点
,一条渐近线的方程是
,则其标准方程是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad98ebf7a3006722baf1ed6cf5fb666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abeb57d8e728c8d9bd15e8902b70a80.png)
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7 . 已知双曲线C:
的左、右焦点分别为
,
,并且经过
点,则
=______ ;双曲线C的渐近线方程为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423db9ff20877e08b9ea37df4bd09b17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ab0801986e834621fb54afbe52bf56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49cca0078dac072087b4fc30c2de4870.png)
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解题方法
8 . 若曲线
,且
经过
这三点中的两点,则曲线
的离心率可能为___________ .(写出一个即可).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7e0dabe0f686f90389634884059c748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bb4e301bb40ce2f30a10cd44ddb5a95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551a0fb5987e18870ae41f92b2865fba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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解题方法
9 . 已知双曲线
的对称轴为坐标轴,一条渐近线的方程为
,且点
在
上,则
的标准方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d585d2d6643471640905d234d9538c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae5e81fa1cb45b787ebe165ec7da5040.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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名校
解题方法
10 . 已知
为等腰直角三角形,
,点
为
的重心,若以
、
为双曲线
的两顶点,且双曲线
过点
,则双曲线
的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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