已知
是椭圆
与圆
的一个交点,且圆心
是椭圆的一个焦点,
(1)求椭圆
的方程;
(2)过
的直线交圆与
、
两点,连接
、
分别交椭圆与
、
点,试问直线
是否过定点?若过定点,则求出定点坐标;若不过定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0c96b59b8f6b4961fd8792c64eec4e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11cd0b4c2736d76fb7d7c0999b4332b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过
![](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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/2011/12/26/1570633293889536/1570633299337216/STEM/75b3427a1a414a818f0d51a38cf7afac.png?resizew=276)
11-12高三上·浙江金华·阶段练习 查看更多[1]
(已下线)2012届浙江省东阳中学高三12月阶段性检测理科数学试卷
更新时间:2016-12-01 11:24:32
|
相似题推荐
解答题-证明题
|
困难
(0.15)
【推荐1】已知中心在原点,焦点在
轴上的椭圆
过点
且离心率
,过点
作直线与椭圆交于
、
两点.
![](https://img.xkw.com/dksih/QBM/2020/12/24/2621025229553664/2622614389030912/STEM/631a27c1-9334-468b-bfda-f9ed8d7b1da1.png?resizew=311)
(1)求椭圆
的方程;
(2)求证:
;
(3)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d56ab70e602f2e2e291df643ab209162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075ba8c6fb5ef7288cd3fed425c8e69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11522dc520d7c4e072b17a066fcf2465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/2020/12/24/2621025229553664/2622614389030912/STEM/631a27c1-9334-468b-bfda-f9ed8d7b1da1.png?resizew=311)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/596ff257d3065dd364f23ad26eac79d9.png)
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【推荐2】在平面直角坐标系
中,椭圆
:
(
)的离心率为
,焦点到相应准线的距离为
,动直线l与椭圆交于
两点.
(1)求椭圆
的标准方程;
(2)若
,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd2981bf2261343f905ec1b5355a3c4.png)
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【推荐3】已知在平面直角坐标系中,O为坐标原点,定义函数
的“和谐向量”为非零向量
,
的“和谐函数”为
.记平面内所有向量的“和谐函数”构成的集合为T.
(1)已知
,
,若函数
为集合T中的元素,求其“和谐向量”模的取值范围;
(2)已知
,设
(
,
),且
的“和谐函数”为
,其最大值为S,求
.
(3)已知
,
,设(1)中的“和谐函数”的模取得最小时的“和谐函数”为
,
,试问在
的图象上是否存在一点Q,使得
,若存在,求出Q点坐标;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abffb1f8530ed2754e75e422e5892cee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eeee9c657cc18da08c0f93df799dd00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eeee9c657cc18da08c0f93df799dd00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abffb1f8530ed2754e75e422e5892cee.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/388d3d213a231cccf854a29eef611d01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd164fc7f0a9cadb2b04dfae66161ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd91fd0818516ea4763c1567079151b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b252cc780aa6a5859a1aedad32f363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be362dec96173f246ff747264007817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c98c0ec4c99989333faa478a946985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4b9dda541ca792577227f3014ddc6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4358ab3d66f7cc25cfeb4fe3fc93a002.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb486a2e713246204f62cd6f19b5ef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/772d1b3c6d3a815b9d6b78cf9480338e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b426608a06477f57cb994f4d00e4465d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8f4ff145204ada7b2b8c26d0afb6b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b86cb9e19ef323dcc1b0126aba5c659.png)
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【推荐1】已知抛物线
的焦点为F,A为C上异于原点的任意一点,以点F为圆心且过点A的圆M与x轴正半轴交于点B,AB的延长线交C于点D,AF的延长线交C于点E.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/2cf18033-157b-4eec-9b94-8d5b0736c209.png?resizew=178)
(1)若点A的纵坐标为4,求圆M的方程;
(2)若线段AD的中点为G,求证:
轴;
(3)
的面积是否存在最小值?若存在,请求出此最小值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/2cf18033-157b-4eec-9b94-8d5b0736c209.png?resizew=178)
(1)若点A的纵坐标为4,求圆M的方程;
(2)若线段AD的中点为G,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595e2e84972b9d5d370b389939489cb7.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f460edcced5597615113c0fdc95b1dfc.png)
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【推荐2】在平面直角坐标系
中,如图,已知椭圆E:
的左、右顶点分别为
、
,上、下顶点分别为
、
.设直线
的倾斜角的正弦值为
,圆
与以线段
为直径的圆关于直线
对称.
![](https://img.xkw.com/dksih/QBM/2014/5/14/1571718923476992/1571718929039360/STEM/86a5baafad724656903c2008e53f2f9d.png)
(1)求椭圆E的离心率;
(2)判断直线
与圆
的位置关系,并说明理由;
(3)若圆
的面积为
,求圆
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ec56b59d6f2654570c2b5c4fd13a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c76916c6ff302cf4fb4b6ace5bb3a95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://img.xkw.com/dksih/QBM/2014/5/14/1571718923476992/1571718929039360/STEM/86a5baafad724656903c2008e53f2f9d.png)
(1)求椭圆E的离心率;
(2)判断直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(3)若圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73d5adfe85535b699655d5ed2f3322d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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【推荐1】已知椭圆
(
)经过点
,且离心率为
.
(1)求椭圆的方程;
(2)椭圆长轴上两个动点
,
满足
,直线
,
分别交椭圆于点
,
(均不同于
),求证:直线
的斜率为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆的方程;
(2)椭圆长轴上两个动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5929048ce5167abc4750589f2e21841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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解题方法
【推荐2】如图所示,椭圆
:
的离心率为
,右准线方程为
,过点
作关于
轴对称的两条直线
,且
与椭圆交于不同两点
与椭圆交于不同两点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65fd6be5900b201efec377d80187501.png)
![](https://img.xkw.com/dksih/QBM/2020/8/19/2531370389250048/2532148672528384/STEM/c9ba6ee7b62d4f53a69113c79b1fdb91.png?resizew=210)
(1)求椭圆
的方程;
(2)证明:直线
与直线
交于点
;
(3)求线段
长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a30d69f4fd1f72efa0f728e5300d8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f081d3013df8536a50f9aa730f924b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1177321542bb5cd77f6430f89997c73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65fd6be5900b201efec377d80187501.png)
![](https://img.xkw.com/dksih/QBM/2020/8/19/2531370389250048/2532148672528384/STEM/c9ba6ee7b62d4f53a69113c79b1fdb91.png?resizew=210)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8e276b517b86d452682881b872cfa4.png)
(3)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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解答题-问答题
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解题方法
【推荐1】已知椭圆
的左、右焦点为
,且
,点
为椭圆
上一点,满足
的周长等于12.
(1)求椭圆
的方程;
(2)过点
作
轴的垂线(不过点
)交椭圆
于点
,连接
延长交椭圆于点
,连接
,试判断直线
是否过定点,如果过定点,求出定点坐标;如果不过定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7638c88f01d609d79947033ed4ff36a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d4f7e7f33963df24d6a46067b4677e5.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/33d776753746914c2410a3946c357f35.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3171b3d11c6f4619e189677345357508.png)
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解答题-问答题
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(0.15)
解题方法
【推荐2】已知椭圆
过点
,
分别为椭圆C的左、右焦点,且
.
(1)求椭圆C的标准方程;
(2)点M,N是椭圆C上与点P不重合的两点,且以MN为直径的圆过点P,若直线MN过定点,求出该定点;若不过定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d0320f51078311d24ded8219c1b52b3.png)
(1)求椭圆C的标准方程;
(2)点M,N是椭圆C上与点P不重合的两点,且以MN为直径的圆过点P,若直线MN过定点,求出该定点;若不过定点,请说明理由.
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