名校
解题方法
1 . 如图,扇形的半径为
,圆心角
,点
在弧
上运动,
,则
的最大值是
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/670cbf21-b96d-498c-8284-7d174b73f619.png?resizew=134)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c786b48d3aff4d2f73f83cc1a32a094a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aca4536fb9684d7b05ffadb14aa3c7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d68a69ae7a9e6ce29faf168b309a94b3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/670cbf21-b96d-498c-8284-7d174b73f619.png?resizew=134)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-09-26更新
|
4179次组卷
|
4卷引用:安徽省合肥市第一中学2019-2020学年高二上学期开学考试数学试题
解题方法
2 . 在平面直角坐标系
中,直线
的参数方程为
(
为参数,
),圆
的参数方程为
,(
为参数,
),则圆心
到直线
的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e54313aecec60f745b0639135de92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51159984b2cb00f30b3986315019623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9831729b1e7d21bdf2fe9bbd2f9e8b44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934796df16df251e0390870f5c3105b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2011·安徽合肥·二模
名校
3 . 在直角坐标系中,以坐标原点为极点
轴的正半轴为极轴建立极坐标系.直线
的参数方程是
为参数),曲线C的极坐标方程是
,直线
与曲线C交于A、B,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ecdcb61dfb31a2e9e148181a11674cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f917a2022014d9c19c29eeac84c74e2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
A.![]() | B.![]() | C.1 | D.![]() |
您最近一年使用:0次