在参数方程
(
,
为参数)所表示的曲线上有
两点,它们对应的参数值分别为
、
,则线段
的中点
对应的参数值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2df6cbb16e9a4b68a70601e906c73a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3609bbd6e71aee77c8e5668c429e25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da6b93dbe5272a5167ff4e2918bec864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c7eb49a823f757461cd5260757b088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd84a8f95166367063218ee03ffd5a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
14-15高二上·黑龙江牡丹江·期中 查看更多[3]
更新时间:2017-11-27 15:23:33
|
相似题推荐
单选题
|
适中
(0.65)
名校
【推荐1】曲线
的参数方程为
(
为参数),直线
的参数方程为
(
为参数),若直线
与曲线
交于
,
两点,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c788ca03a239d8379639632cd9332c55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104ce1ac0e73ce3153a2f0d03d8431a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/d36b353993900a5059dfaabe85314209.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】直线
(
为参数)被曲线
截得的弦长是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b2c24706a3d30a99c16abbd49da7716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1fa37c4c826b5dcfebe86ab6177906.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次