如图,在平面直角坐标系中,平面内有一动点
,定点
、
,连结
._________ ;(填“是”或“否”)
(2)若点P只是在第一象限内运动,过点P作
于Q,当
取得最大值时,点P的坐标是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae5b3f682841d4bf4a46fcd1ba5949a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0d256036d52b784b8c68bfc8db69d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6938eeb65411eeac15e140cf1db99773.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若点P只是在第一象限内运动,过点P作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84733f9dc908ceb11459cc2aed580ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
更新时间:2024-04-08 15:46:56
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