1 . 若平面上的点P及半径为R的圆C,我们称
为点P对圆C的幂,则平面上对圆
:
及圆
:
幂相等的点P的坐标所满足的等式是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d655af6d1b37dbadd2c4916db227f77b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb63dac75f3524d0ca3720a2cc117ca5.png)
您最近一年使用:0次
2022-09-07更新
|
156次组卷
|
2卷引用:山西省运城市万荣县第二中学2022-2023学年高二上学期9月月考数学试题
名校
解题方法
2 . 拟在某小区北侧围栏外的草坪上修建健身步道,设计思路为相交的两圆,设计方案如图所示:点
为小区出入口,且均在圆
上,
点正北方向20米处为圆心
点正北方向60米处为圆心
米,且
为两圆的相交弦,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f2ec2e454afe8452a6f1714a986aa38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4bc45ba4c2ad98835bfdd40c2212ba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c29f355648f686a3756764c3846a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/21/f2a3d501-f9fe-49fb-bac8-83fd23326b2a.png?resizew=183)
您最近一年使用:0次
名校
3 . 随着社会的进步,人民的生活水平逐步提高,金秋时节.公园鲜花盛开,为了让市民有更好地赏花体验,公园开辟出一块
区域用作花卉展示,
,如图所示,以
为坐标原点,建立直角坐标系,弧
是圆
的一部分,圆上的动点
满足到两定点
的距离之比等于
,曲边图形
作为主展区(Ⅰ),梯形
作为副展区(Ⅱ).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/b495f73a-9725-432d-bb2a-0c8c4678508b.png?resizew=157)
(1)求圆
的轨迹方程,并计算主展区(Ⅰ)曲边图形
的面积;
(2)若弧
上的点到线段
的最短距离是1,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90141f4c399bcf7dbffaedd91ee66eb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334528b4f29f9301875430197753b630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f23bd7203e1578c9f5249b4fc5f26b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac97e6740365c85ad857aff85cefbe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b4bbd23b2a1ffba33f2bec1495653a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/b495f73a-9725-432d-bb2a-0c8c4678508b.png?resizew=157)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b4bbd23b2a1ffba33f2bec1495653a.png)
(2)若弧
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
2021-11-23更新
|
81次组卷
|
2卷引用:山西省怀仁市第一中学2021-2022学年高二上学期期中数学(理)试题
4 . 已知
是以
为圆心,
为半径的圆上任意两点,且满足
,
是
的中点,若存在关于
对称的
两点,满足
,则线段
长度的可能值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4f8edea2e5d4e08cf6210d0e9f3fdbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a73e13066f5ab14b07a1588d968578.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c3a2f5b0702ea9fbb9dc8904579737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b768ea6a05cbf45b28fc46c501ba532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.3 | B.4 | C.5 | D.6 |
您最近一年使用:0次