已知椭圆
的离心率为
,且椭圆过点
.
(1)求
的方程;
(2)设过点
的动直线
与
相交于
,
两点,若
为坐标原点,当
面积最大时,求
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef233ad3db01fa3ce9ee94eaad8e64e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a23e87d16c32b5aa4357f481b5808a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
23-24高二上·河南驻马店·期末 查看更多[2]
河南省驻马店市环际大联考“逐梦计划”2023-2024学年高二上学期阶段考试(三)数学试题(已下线)专题27 直线与椭圆的位置关系及椭圆的弦长问题、面积问题(期末大题1)2023-2024学年高二数学上学期期末题型秒杀技巧及专项练习(人教A版2019)
更新时间:2024-01-24 17:18:55
|
相似题推荐
【推荐1】已知椭圆
的离心率为
,且经过点
,
为椭圆C的左右焦点,
为平面内一个动点,其中
,记直线
与椭圆C在x轴上方的交点为
,直线
与椭圆C在x轴上方的交点为
.
(1)求椭圆C的标准方程;
(2)①若
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;
②若
,探究
之间关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b170470d02c85c1be9a3faff5eca0de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c30a7506331e47342fb1e7d2e12d041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a16c755ab3fea6ca99b13193a5d7e485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
(1)求椭圆C的标准方程;
(2)①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/838d4d7fa68e89d2f57952c5eaa019d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b54c90e36facebeb720f3531a07a467.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/363dcefb342c51d2af3cf3b7d0599944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62fbe72587d27b3eeb48abe809320de7.png)
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【推荐2】已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a259dddccc3cfe8f81735cd5834785d.png)
(
)的离心率为
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截得的线段长度等于
的短轴长.已知
与
轴的交点为
,过坐标原点
的直线
与
相交于点
,直线
分别与
相交于点
.
(1)求
、
的方程;
(2)求证:
;
(3)记△
,△
的面积分别为
,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a259dddccc3cfe8f81735cd5834785d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971ce098bf488533da8d7c72d7907282.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada25f76504c3fd1226da43c94cb4277.png)
(3)记△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf2f0df53aa68c9c334165034788166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df21b7b7a47318ef2bb069450c39f1cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3637753af5ce86be9c23a9beb6b5067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a06f26807c92be14f6f2de6ea81d3c2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐1】已知椭圆E:
,过原点O作直线l与椭圆E交于A、B两点,其中
位于第一象限,
为椭圆
上异于A、B的一点.
(1)若AC经过椭圆
的右焦点
,试求
的最大值.
(2)若
,记点
,试证明B、C、D三点共线.
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(1)若AC经过椭圆
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(2)若
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您最近一年使用:0次
解答题-问答题
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较难
(0.4)
名校
解题方法
【推荐2】椭圆
的左,右焦点分别为
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轴正半轴交于点
,若
为等腰直角三角形,且直线
线被圆
所截得的弦长为2.
(1)求椭圆的方程;
(2)直线
与椭圆交于点
,线段
的中点为
,射线
与椭圆交于点
,点
为
重心,探求
面积
是否为定值,若是求出这个值,若不是求
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(1)求椭圆的方程;
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