如图(1)所示,
为矩形
的边
上一点,动点
、
同时从点
出发,点
沿折线
运动到点
时停止,点
沿
运动到点
时停止,它们运动的速度都是
秒.设
、
同发
秒时,
的面积为
.已知
与
的函数关系图象如图(2)(曲线
为抛物线的一部分),则下列结论:①
;②
;③当
时,
;④当
秒时,
;其中正确的结论是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259bb63f8bbcabbbf13e84cdc46273a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7125ed7d36982d0d4ab8902f1875a45e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8dcc9f79fe5f07f25447aa442ee14ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d740004cfdade4c185f722dadc27e15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9b1ce9ed49e7ec0174d1cd2c584612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5198885d668b1ecb80348c38a5e22c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3823aeb44f6c96e65b2effc7e5569116.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/399ef5b7c855cbb3b1fad98bc4d04341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b39557a31b6a84369461d1b9f6bcd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70789fea24b1237dcb73ebf5be6e03f6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/3/e1d29ac5-b3bc-4a19-b71a-a4112cf75465.png?resizew=318)
更新时间:2024-01-30 10:09:13
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