解题方法
1 . 已知
是双曲线
的左、右焦点,点
在双曲线
上,
,且
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf76b850cb1e017fce4cdf63fea45c6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2427943a38dcd93c9ec9b735ffc9fe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1bbfe169759782128dcc397a8757a47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.4 | C.5 | D.8 |
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2 . 已知双曲线C:
(
,
)的左右焦点分别为
,
,点M在双曲线C的右支上,且
,离心率
.
(1)求双曲线C的标准方程;
(2)若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e1bd05b71aa0f9f979b0d4cb543ae3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0276541c12707b24d2f06ea3d976cf7.png)
(1)求双曲线C的标准方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74404619ad5699e6c44c947fb569600f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f9a699aededce0ad803bf8257fbbcb.png)
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|
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3 . 已知离心率为2的双曲线C:
(
)的左右焦点分别为
,
,直线
与双曲线C在第一象限的交点为P,
的角平分线与
交于点Q,若
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5076829e649b3f3866d4a7e07a5713e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697c20fca284394bf5d5b9e5f6d952e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da724b06833a269a436448f256c139c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a54279c4529827581bbeaa76c1beb437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aed724e5ad5b9dd94004436d809d5e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6卷引用:湖南省益阳市2019-2020学年高二上学期期末数学试题
湖南省益阳市2019-2020学年高二上学期期末数学试题湖北省襄阳四中2019-2020学年高三下学期3月月考数学(文)试题(已下线)专题04 圆锥曲线(难点)-2020-2021学年高二数学下学期期末专项复习(北师大版2019选择性必修第一册、第二册)四川省南充高级中学2020-2021学年高二下学期期中数学(文)试题苏教版(2019) 选修第一册 一蹴而就 第3章 习题课一(已下线)期末重难点突破专题02-【尖子生专用】2021-2022学年高二数学考点培优训练(人教A版2019选择性必修第一册)
4 . 已知双曲线
,它的焦点为
,
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/255c75dd684f3a067c546431496c19a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/945ab46a4e2fd4872dbc179c05d4fe79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c17704ab344ee30d5a42df6edd3c4e5.png)
A.C的虚轴长为4 |
B.C的渐近线方程为![]() |
C.C上的任意点P都满足![]() |
D.C的一个顶点与抛物线![]() |
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解题方法
5 . 某石油勘探队在某海湾发现两口大型油气井,海岸线近似于双曲线
的右支,现测得两口油气井的坐标位置分别为
,
,为了运输方便,计划在海岸线上建设一个港口,当港口到两油气井的距离之和最小时,港口的位置为______ .(填写坐标即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a8bc1791a9c09bde4866854f67a2a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5b7863de77d7c636b12a79aba8e649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d6328a6ae1da97b679adc1da5e603e8.png)
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6 . 记双曲线
的左焦点为
,双曲线
上的点
关于原点对称,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c96cd1b8cadfa49e8444adf224fa204d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a308b980f486306256e425a1a1018b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74304f81a17fc5a483685be8a9a28c95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c96cd1b8cadfa49e8444adf224fa204d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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|
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解题方法
7 . 设双曲线
的左焦点
,直线
与双曲线
在第二象限交于点
,若
(
为坐标原点),则双曲线
的渐近线方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d864b6ecea3656003f9b82757926ef88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0944c99f34ee41bea845303ed15a7d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e99e9ab207d4fe463c894a887c88cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f01172fa3c06c87a328f1da5448ba11d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 已知两点
,
,若直线上存在点P,使
,则称该直线为“B型直线”
给出下列直线:
其中为“B型直线”的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd01b71b83bd6c8a27a712f9c31fd40c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd799f4c8fb8e4b9d605f4c71e7edfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28d3e961ac3cff5733b45c98bd6cec16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/718b0193d59d2ac91a9e148af021ab43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
9 . 已知双曲线
,与抛物线
有一个公共的焦点
,且两曲线的一个交点为
,若
,则双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c9aa5dc8e688868ad3eac88714cd51.png)
A.2 | B.![]() | C.![]() | D.![]() |
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