名校
1 . 已知椭圆E:
的离心率是
,
,
分别为椭圆E的左右顶点,B为上顶点,
的面积为
直线l过点
且与椭圆E交于P,Q两点.
![](https://img.xkw.com/dksih/QBM/2019/3/26/2168983146479616/2170264340652032/STEM/db47ee4f810b43f9bdf720dea95d7d1b.png?resizew=276)
求椭圆E的标准方程;
求
面积的最大值;
设直线
与直线
交于点N,证明:点N在定直线上,并写出该直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/879975dc3b64b0241764e9d580470994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/024e2379c58191758f8bd7602a6bcb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b34a75c2a392f235c5f07b91d9fb58d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cfb52dac51c9b2d56d9b5de18e6529b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dd0caec008c15302ca973b8e655b748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14beedd673859267cb68203a5e553670.png)
![](https://img.xkw.com/dksih/QBM/2019/3/26/2168983146479616/2170264340652032/STEM/db47ee4f810b43f9bdf720dea95d7d1b.png?resizew=276)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db7d3d842c13f9bb17bbf6ee0426a212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62295c36d2e2174908c2bec0eb5b30f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a74b17fbe7453f315363649bb0d3618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca5acc4496b2e470ba5308ee41f0961.png)
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2019-03-28更新
|
697次组卷
|
3卷引用:【市级联考】山东省潍坊市2018-2019学年高二上学期期末考试数学试题
2 . 已知
是椭圆
上一点,F是椭圆的右焦点,设点F到直线
的距离为d,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad769213fb1c155854b5657bef1e858b.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a955c88a3e569ae3bc7aea526a7b93e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075b5137f43bf22122f6913abff2761d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22049bea37e015be0e151016fd91395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfc1e1baa04cd44c3e7189624485be71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad769213fb1c155854b5657bef1e858b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a955c88a3e569ae3bc7aea526a7b93e.png)
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3 . 已知
,
,直线AD与直线BD相交于点D,直线BD的斜率减去直线AD的斜率的差是2,设D点的轨迹为曲线C.
求曲线C的方程;
已知直线l过点
,且与曲线C交于P,Q两点
Q异于A,
,问在y轴上是否存在定点G,使得
?若存在,求出点G的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18cf615add08aae0fc6ec39e200a46ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff48898c5c55d682d1b8c3bd306cf31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5affca01450cdbccb458145a216458de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be413c1930b6dfa6f37adba009319661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbf5c561e57d9d28b8793adb9908d71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e889ee80daf29b8e5c0e2aeb656c5da.png)
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4 . 设F为抛物线C:
的焦点,过F作倾斜角为
的直线交曲线C于A,B,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac8d134f375dbe48a9d3645b5b178ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe8dc472dade6cea6943164792ab532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b39211cabeab31b86b6d039f23b02b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.8 | B.![]() | C.16 | D.![]() |
您最近一年使用:0次
2019-03-28更新
|
449次组卷
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4卷引用:【市级联考】山东省潍坊市2018-2019学年高二上学期期末考试数学试题
【市级联考】山东省潍坊市2018-2019学年高二上学期期末考试数学试题 新疆和田地区皮山县高级中学2023-2024学年高二上学期1月期末数学试题广东省信宜市第二中学2021-2022学年高二下学期开学热身数学试题(已下线)考点51 直线与抛物线的位置关系(考点专练)-备战2021年新高考数学一轮复习考点微专题
5 . 给出下列四个命题
已知P为椭圆
上任意一点,
,
是椭圆的两个焦点,则
的范围是
;
已知M是双曲线
上任意一点,
是双曲线的右焦点,则
;
已知直线l过抛物线C:
的焦点F,且l与C交于
,
两点,则
;
椭圆具有这样的光学性质:从椭圆的一个焦点出发的光线,经椭圆反射后,反射光线经过椭圆的另一个焦点,今有一个水平放置的椭圆形台球盘,点
,
是它的焦点,长轴长为2a,焦距为2c,若静放在点
的小球
小球的半径忽略不计
从点
沿直线出发则经椭圆壁反射后第一次回到点
时,小球经过的路程恰好是4a.
其中正确命题的序号为______
请将所有正确命题的序号都填上
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45dc12527b1ac520121e7e42b114c539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a055d94c4c69a7f867c0e2b69bd8041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1996f60e2c55e0caa2b095ac23ab2b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ee51e2bac715aa1c5dbb4d109b9a115.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ec7369765a42dfa8ac1e16be9d1cf96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21bb38218bac3f428548d7070b699df4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1996f60e2c55e0caa2b095ac23ab2b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04fe34637dc2b288decdf7998b592f55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82e415812cca9545611c0faa0c01b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93be9f8fb5fc2a0908a3389f08f6c57b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db444620748560d5b3e90cead81dc4ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a523345916a439fca79a5d56e3014b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b56aef1fc3e2160072ebec70e413c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8b8edd94bc4d5d517ec77e56800e41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a055d94c4c69a7f867c0e2b69bd8041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1996f60e2c55e0caa2b095ac23ab2b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a055d94c4c69a7f867c0e2b69bd8041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a055d94c4c69a7f867c0e2b69bd8041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a055d94c4c69a7f867c0e2b69bd8041.png)
其中正确命题的序号为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
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名校
6 . 已知点F,A分别为双曲线C:
的左焦点、右顶点,点B(0,b)满足
,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/c123d581a8ba51fc2b4523504b55a6f0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-01-29更新
|
331次组卷
|
3卷引用:山东省潍坊市安丘市2022-2023学年高二上学期期末数学试题
7 . 已知椭圆
过点
作弦且弦被点
平分,则此弦所在的直线方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d12ebd10f6c0bcf98be52c32b107f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-02-14更新
|
301次组卷
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5卷引用:2015-2016学年山东潍坊中学高二上学期期末理科数学试卷
2015-2016学年山东潍坊中学高二上学期期末理科数学试卷黑龙江省鸡东县第二中学2020-2021学年高二上学期期末考试数学(文)试卷2016-2017学年山东菏泽一中宏志部高二上月考三数学试卷【全国百强校】黑龙江省大庆铁人中学2018-2019学年高二上学期第一次月考数学(文)试题(已下线)2.4.1直线与圆锥曲线的交点(分层练习)-2023-2024学年高二数学同步精品课堂(北师大版2019选择性必修第一册)
名校
8 . 如图,圆O与离心率为
的椭圆
相切于点M(0,1),过点M引两条互相垂直的直线l1,l2,两直线与两曲线分别交于点A,C与点B,D(均不重合).若P为椭圆上任一点,记点P到两直线的距离分别为d1,d2,则
的最大值是_________ ;此时P点坐标为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9c6fe12d3a9727e00ef87a630302ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de13e0800d1676171ef49bba34e7fe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b5deabcc24bf89bc45425067086b0d9.png)
![](https://img.xkw.com/dksih/QBM/2018/4/28/1933997179568128/1937485611196416/STEM/a9d3d607f8fb46c6941a736cd6ba57c0.png?resizew=154)
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2018-05-03更新
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850次组卷
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3卷引用:山东省潍坊市寿光市第一中学2021-2022学年高二上学期期末数学试题
山东省潍坊市寿光市第一中学2021-2022学年高二上学期期末数学试题(已下线)2017-2018学年度下学期高中期末备考 【浙江版】高二【精准复习模拟题】 拔高卷02【教师版】浙江省诸暨中学2017-2018学年高一下学期期中考试数学试题
名校
9 . 抛物线
的焦点为
,准线为
,
、
是抛物线上的两个动点,且满足
.设线段
的中点
在
上的投影为
,则
的最大值是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/4ab02803c63e68b7bafacc7ea62647dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c683d0f5034025be78bb6be865c8368a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-04更新
|
783次组卷
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13卷引用:2015-2016学年山东省潍坊市高二上学期期末理科数学试卷
2015-2016学年山东省潍坊市高二上学期期末理科数学试卷2015-2016学年甘肃省兰州一中高二上期末理科数学试卷【区级联考】山西省运城市盐湖区2017-2018学年高二上学期期末考试数学文试题2016-2017学年重庆市万州第二高级中学高二上学期期末考试理数试卷2015-2016学年湖北省黄石市有色一中高二下期中理科数学试卷安徽省六安市舒城中学2017-2018学年高二下学期第一次统考(开学考试)数学(文)试题四川省南充市阆中中学2018-2019学年高二6月月考数学(理)试题2016届四川省绵阳南山中学高三12月月考理科数学试卷河南省夏邑县第一高级中学2017届高三下学期第七次模拟考试理科数学试题江西省上饶市2018届高三下学期第二次高考模拟数学(文)试题2012年全国高中数学联合竞赛试题安徽省肥东县高级中学2019届高三12月调研考试数学(理)试题【市级联考】四川省峨眉山市2019届高三高考适应性考试数学(理)试题
名校
10 . 已知椭圆的左焦点为
,右焦点为
.若椭圆上存在一点
,满足线段
相切于以椭圆的短轴为直径的圆,切点为线段
的中点,则该椭圆的离心率为
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
549次组卷
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2卷引用:2015-2016学年山东潍坊中学高二上学期期末理科数学试卷