名校
解题方法
1 . 已知点F是抛物线C:
的焦点,过点F的直线l交抛物线C于P,Q两点,过点P作C的准线的垂线,垂足为M,O为坐标原点.
(1)证明:Q,O,M三点共线;
(2)若
,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
(1)证明:Q,O,M三点共线;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80a362c99c725a66f7565f43c4dc16a.png)
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2024-04-16更新
|
145次组卷
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2卷引用:广东省茂名市高州中学2023-2024学年高二下学期5月第一次模拟数学试卷
名校
解题方法
2 . (多选)已知
,
分别为椭圆C:
的左、右焦点,P为椭圆上任意一点(不在x轴上),
的内切圆与
切于点M,过点
的直线l与C交于A,B两点,则( )
![](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/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/355dffb42861f3e297694f4be77c694c.png)
A.![]() |
B.![]() |
C.![]() |
D.若Q为![]() ![]() |
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2024-04-16更新
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340次组卷
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2卷引用:广东省茂名市高州中学2023-2024学年高二下学期5月第一次模拟数学试卷
名校
3 . 已知双曲线的方程为
,则该双曲线的焦距为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa4714c98ff5ed7679c197ca6c49a41.png)
A.2 | B.4 | C.![]() | D.6 |
您最近一年使用:0次
2024-04-16更新
|
341次组卷
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2卷引用:广东省茂名市高州中学2023-2024学年高二下学期5月第一次模拟数学试卷
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解题方法
4 . 已知
是椭圆
的右焦点,点
在椭圆上,
,且
,则椭圆的离心率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54363e4039d93ec0f67d011897a1f54d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a528a470ed0302853ec5cb0e3fbf854.png)
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解题方法
5 . 已知双曲线
的焦距为4,且过点
.
(1)求双曲线
的方程;
(2)过双曲线
的左焦点
分别作斜率为
的两直线
与
,直线
交双曲线
于
两点,直线
交双曲线
于
两点,设
分别为
与
的中点,若
,证明:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c40c376377e4a31da4dc4a007e976de6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d1fb1fa86f17d4f5b20eb33bb87dedd.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
(2)过双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/257beb71337358f5ccc57219d9153666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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6 . 若椭圆
的一个焦点坐标为
,则实数
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb310da4ecca422169017ef85bde17af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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7 . 已知椭圆
的左、右焦点分别为
,若
上存在无数个
点满足:
,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca012232a3caa98be08d1144ac5257f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7638c88f01d609d79947033ed4ff36a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c73c8f52353cb1065494ffa288be8f42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 已知椭圆
的左右焦点分别为
,过
的直线
交椭圆于
两点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
A.![]() |
B.![]() ![]() |
C.![]() |
D.若点![]() ![]() ![]() ![]() ![]() |
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2024-03-26更新
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3卷引用:广东省深圳外国语学校2023-2024学年高二下学期第二次月考数学试题
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解题方法
9 . 已知椭圆
:
离心率
,短轴长为2.
(1)求椭圆
的标准方程;
(2)设直线
过椭圆
的右焦点,并与椭圆相交于
,
两点,截得的弦长为
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a0b452fd57bbdc105589e871baa009.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de85df85401e7e8da683ea4a784963c.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解题方法
10 . 在平面直角坐标系
中,动点
与两个定点
和
连线的斜率之积等于
,记点
的轨迹为曲线
,直线
:
与曲线
交于A,B两点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e84c9cbf6670c373e23a1a5781f9c544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d9c91a0bbe05db682f3a0d06bef9fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018d29fbd23afb4c465c9c5c8fd42eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
A.曲线![]() ![]() |
B.曲线![]() ![]() |
C.满足![]() ![]() |
D.若![]() ![]() ![]() |
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