1 . 已知椭圆
上一点M的纵坐标为2.
(1)求M的横坐标;
(2)求过点M且与
共焦点的椭圆方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ae68807a1faa5752f55ce5bd643f83.png)
(1)求M的横坐标;
(2)求过点M且与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81bdc07367292653484aa6e5a121b757.png)
您最近一年使用:0次
2016-12-03更新
|
685次组卷
|
3卷引用:2015-2016学年河北邯郸曲周县一中高二上学期第二次月考理科数学卷
14-15高三上·河北衡水·阶段练习
解题方法
2 . 已知椭圆
的左、右焦点分别为
,椭圆的离心率为
,且椭圆
经过点
.
(1)求椭圆
的标准方程;
(2)若线段
是椭圆过点
的弦,且
,求
内切圆面积最大时实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0dfb290b1a84f670549554a0c988593.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697b2c535494b5acb51388f5c8428879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f744ab198210340a54adb2ae4a6b9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
9-10高二下·河南郑州·期末
解题方法
3 . 设
分别为椭圆
的左、右两个焦点.
(1)若椭圆
上的点
到
两点的距离之和等于4,求椭圆
的方程和焦点坐标;
(2)设点P是(1)中所得椭圆上的动点,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
(1)若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315a24a74c99dfa18e6d8b1b5220724b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设点P是(1)中所得椭圆上的动点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49f274a6fb62ddc16a07565d54006985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
您最近一年使用:0次
2016-12-03更新
|
578次组卷
|
5卷引用:2015-2016学年河北省望都中学高二10月月考文科数学试卷
2015-2016学年河北省望都中学高二10月月考文科数学试卷2016-2017学年山东桓台二中高二9月月考数学试卷(已下线)郑州智林学校09-10学年高二下学期期末考试数学试卷(理科)(已下线)2011-2012年福建省福州市八中高二上学期期末考试理科数学2014-2015学年甘肃省兰州一中高二上学期期末考试数学试卷
11-12高二下·河北衡水·阶段练习
4 . 已知抛物线
的焦点
以及椭圆
的上、下焦点及左、右顶点均在圆
上.
(1)求抛物线
和椭圆
的标准方程;
(2)过点
的直线交抛物线
于
、
两不同点,交
轴于点
,已知
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c518a09919976d184de6ee1c5dec4b48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83de9a16fe69aa19744801693652be7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
(1)求抛物线
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/93f38efbc14041c2be89dc0577ab8df8.png)
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/e966c9fed75c4e6181a62c4a5cc261d9.png)
(2)过点
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/769ad5ed395a48ca932943309bed59dc.png)
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/93f38efbc14041c2be89dc0577ab8df8.png)
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/acf674bda8a3497bb8c2cf93bd59f47e.png)
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/55bd1e65687c4ff9b4d387dbcdebfdec.png)
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/3491c81e10734d34b9b8c3e86933f59b.png)
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/fd413e6d44a24a3ba27eda3145770c79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8887db8acd21bcb971ccf7f56ef1935f.png)
您最近一年使用:0次