已知定点A(12,0),M为曲线
上的动点,
(1)若
,试求动点P的轨迹C的方程.
(2)若
与曲线C相交于不同的两点E、F, O为坐标原点且
,求∠EOF的余弦值和实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9504c38c5b53cc92a9e743d1e672c7c0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e999332bd3f358d9293e72e0b227d8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f8c0942dc34d03893881f0655a0b13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1235675a12bcf8f715dacc53bd24baab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
10-11高三·湖北荆州·阶段练习 查看更多[1]
(已下线)2011——2012学年湖北省洪湖二中高三八月份月考试卷理科数学
更新时间:2016-12-01 00:02:42
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知平面向量
、
满足
,
,
(1)若
,试求
与
的夹角的余弦值;
(2)若对一切实数
,
恒成立,求
与
的夹角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dc9e508a2f476c8ade3562f0801ff57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/285a78e061d318c724971ce7def2d8dc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fbb10314fbe1a7b3a8af7da92158d42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
(2)若对一切实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b429c6c126029c82d8483c0d04e847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】已知复平面内平行四边形ABCD,A点对应的复数为
,向量
对应的复数为
,向量
对应的复数为
,求:
(1)点D对应的复数;
(2)平行四边形ABCD的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7ccfc8f518104f35f29380e47dd3d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083a20abb668d4c26fe5039bd108b40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828c23f68b6fc90f705a9d691bcfab35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec98bcde0ea979514029766fc7656aa7.png)
(1)点D对应的复数;
(2)平行四边形ABCD的面积.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】在平面内,已知动点M到两个定点
,
的距离的比值为2.
(1)求动点M的轨迹方程,并说明其轨迹C的形状;
(2)直线
与轨迹C交于两点,求过该两点且面积最小的圆的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/676cb8855b45ea1c3c9bb8d22922abea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cad955f235c6dc064b5cc814b8c0656.png)
(1)求动点M的轨迹方程,并说明其轨迹C的形状;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f9282813a58d9d14a5fe20846260003.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】如图,设直线l为公海与领海的分界线,一巡逻艇在A处发现了海面B处有一艘走私船,A与公海相距20海里.走私船可能向任一方向逃窜,若它进入公海则逃脱成功.假设走私船和巡逻艇都是沿直线航行,巡逻艇的航速是走私船航速的
倍.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/7/4947d1b1-3cce-4767-87f5-e108974f1e85.png?resizew=141)
(1)当
,
,
时,走私船能被截获的点在一个圆上,求这个圆的标准方程;
(2)可知非截获区域是一个圆的内部,如果此圆和分界线l没有公共点,则巡逻艇可以成功截获走私船.已知B在A的北偏东
,相距
海里处,为了成功截获走私船,求
的最小整数值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844278bed099035561c35676cc642146.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/7/4947d1b1-3cce-4767-87f5-e108974f1e85.png?resizew=141)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cb9e88d3e58141dba299dcd8edc4e18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/819f9d5a02e63b7b5d4616f3c701b068.png)
(2)可知非截获区域是一个圆的内部,如果此圆和分界线l没有公共点,则巡逻艇可以成功截获走私船.已知B在A的北偏东
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7fdaf9c9ae3eb3d4077ea8aa38dd90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次