如图,在
中,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/53b778e9-bee4-4320-80b3-2765b9548441.png?resizew=595)
(1)如图1,若
,
,求
的面积;
(2)如图2,
为
外的一点,连接
且
,
.过点
作
交
的延长线于点
.求证:
.
(3)如图3,在(2)的条件下,作
平分
交
于点
,过
点作
交
的延长线于点
.点
为直线
上的一个动点,连接
,过
点作
,且始终满足
,连接
.若
,请直接写出
取得最小值时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d35d8d8bb0dc17f2f86fe5b230a2b8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/53b778e9-bee4-4320-80b3-2765b9548441.png?resizew=595)
(1)如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea781ea1e67e42f1ab59768615a3172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71989b96a7c7ade1879bbb9bd2cffb1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fb76bb3f6796cc61909e76ade8eb2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7305de9211785b826823153897b17517.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/838814abcf3a472d5cf237050e1af833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a93d5b1395e1156f5505f9c47120781.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2695cb3b9bb295885ea8dae8be0caf35.png)
(3)如图3,在(2)的条件下,作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35803969509655f72b4118503ae1c966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f18a63e79d05a6240c21c0e275c51d19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30f954a8da05cc9144d4bf86f88e236a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beb207dd3ab258cf7036e676e1fc17d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eef22159e492e628d9b353c1561780a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe4b9cb1703ae1bf849f83ce05c6f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/716a222d09e77104efd95dda21b701a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/629e3126244073b07f16a779fc965160.png)
更新时间:2022-11-22 13:31:09
|
相似题推荐
解答题-作图题
|
较难
(0.4)
名校
【推荐1】已知⊙O,请作出⊙O的内接等腰直角三角形ABC,∠C=90°.在⊙O上任取一点P(异于A、B、C三点),连接PA、PB、PC.
![](https://img.xkw.com/dksih/QBM/2021/4/9/2695887856623616/2697002580336640/STEM/db538f8e-4bc8-4e8a-98b3-896138a2d18f.png?resizew=314)
①依题意补全图形,要求尺规作图,不写作法,保留作图痕迹;
②请判断PA、PB、PC的关系,并给出证明.
![](https://img.xkw.com/dksih/QBM/2021/4/9/2695887856623616/2697002580336640/STEM/db538f8e-4bc8-4e8a-98b3-896138a2d18f.png?resizew=314)
①依题意补全图形,要求尺规作图,不写作法,保留作图痕迹;
②请判断PA、PB、PC的关系,并给出证明.
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐2】(1)如图1,已知正方形
,分别以
边为等边三角形的边向外作等边
和等边
,连接
交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/10/0f219ba8-384b-42f8-92a4-300d2ef009fb.png?resizew=296)
①求证:
;
②求
的度数;
(2)若将正方形
变成矩形
,其他条件不变,如图2,若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82d579a717399137b8c6d475d33cd4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441dec590b47adc3678a291a3ec89a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f1b5a6f26334e37bf5110e357e7bd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/10/0f219ba8-384b-42f8-92a4-300d2ef009fb.png?resizew=296)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018d32efe5d0ddddba128e2aa979e304.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf7a961a55aa7f225fadb6a25a60c75.png)
(2)若将正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b32c338a4e694f2c5a1fe23f6e24eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf7a961a55aa7f225fadb6a25a60c75.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐1】如图1,在矩形
中,点
是边
的中点,点
在边
上,
,垂足为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/9/15014674-c7aa-4574-ba8c-a553fe31512c.png?resizew=588)
(1)如图2,当矩形
为正方形时,则
________;
(2)如图3,在(1)的条件下即矩形
为正方形时,已知
,过
点作
交
于点
,使得
,求
的长;
(3)如果
,
,
,求
与
的函数关系式,并写出函数自变量
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c672f693a7e75a7bae4936dcb1920430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/9/15014674-c7aa-4574-ba8c-a553fe31512c.png?resizew=588)
(1)如图2,当矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ac43a41c165ebafe355f2fb58c0d6e.png)
(2)如图3,在(1)的条件下即矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589786dd7c3a2679c3230b671cd232d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e60b07ce87a70e50eead0348acdb1eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
(3)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3218dc3ae89598272744f193f8c5286d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617345f55a92ef7e03e11a7f9f174e30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7566a5678f868ffb7c6d0c2d912ca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐2】数学课上,老师在黑板上展示了如下一道探究题:
在
中,
,
,点D,E分别在边AC,AB上,且
,试探究线段AE和线段AD的数量关系.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/13/68ba5c24-d6e7-4210-a642-9a83f5eccff2.png?resizew=574)
(1)初步尝试
如图①,若
,请探究AE和AD的数量关系,并说明理由.
(2)类比探究
如图②,若
,小组讨论后,有小组利用120°的角作垂线构造直角三角形,通过证明两次三角形全等,得到AE和AD的数量关系仍然成立,请你写出推理过程;
(3)延伸拓展
如图③,将第(2)中的“点E在边AB上”改为“点E在边BA的延长线上”,其它条件不变,请探究AE和AD的数量关系(用含m的式子表示),并说明理由.
在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02adb59f0d7889cb04237104445c5766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb2cf0e95fdf1fd8a5b01d3dfd905e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa80cfd38f59e5cbbb30628d03113689.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/13/68ba5c24-d6e7-4210-a642-9a83f5eccff2.png?resizew=574)
(1)初步尝试
如图①,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ac762a2899a58faa0d3ab44f1281fa.png)
(2)类比探究
如图②,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d03f73bec20b60bc7608972607f5a9e.png)
(3)延伸拓展
如图③,将第(2)中的“点E在边AB上”改为“点E在边BA的延长线上”,其它条件不变,请探究AE和AD的数量关系(用含m的式子表示),并说明理由.
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐1】菱形
中,
,连接
,点
是
边上一点,连接
交
于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/13/5b3be160-2fe2-46ea-a1b6-dbbe58d9ee36.png?resizew=469)
(1)如图1,若
,当
时,求
的长;
(2)以
为边向右侧作等边
,连接
,
.
①如图2,点
是
中点,连接
,求证:
;
②如图3,当
时,直接写出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e918b70b02a73685e3c536c7f380e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/13/5b3be160-2fe2-46ea-a1b6-dbbe58d9ee36.png?resizew=469)
(1)如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b937442ad4cc480adc11bb143559454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
(2)以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
①如图2,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/871db016f55737e954060366b829a3f5.png)
②如图3,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb5a2fb856430b29a6369ec01df97472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56cb1fef63802be118b0f05c1a0d2283.png)
您最近一年使用:0次
解答题-作图题
|
较难
(0.4)
名校
【推荐2】关于
的一元二次方程
的一个根是2,另一个根
.
(1)若直线
经过点
,
,求直线
的解析式;
(2)在平面直角坐标系中画出直线
的图象,
是
轴上一动点,是否存在点
,使
是直角三角形,若存在,直接写出点
坐标,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3e576a7b0ad9f8eec25d017f123a344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae431c3e6d12400eef8e5574db22be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)在平面直角坐标系中画出直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2694c32ca1e120e988012b7ecd74f625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐1】(1)如图1,把一块三角板(
,
)放入一个“U”形槽中,使三角形的三个顶点A、B、C分别在槽的两壁及底边上滑动,已知
,在滑动过程中,你发现线段
与
有什么关系?试说明你的结论;
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/ce3b8d84-1df5-45cb-a3f8-e0ec51cd90b5.png?resizew=556)
【变式探究】(2)如图2,在
中,点D、E、F分别在边
、
、
上,若
,那么
与
有何关系,并加以说理;
【拓展应用】(3)如图3,在
中,
,
,点D、F分别是边
、
上的动点,且
.以
为腰向右作等腰
,使得
,
,连接
.
①试判断线段
、
、
之间的数量关系,并说明理由;
②如图4,已知
,点G是
的中点,连接
、
,直接写出
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d50a529b1cf3018da2d1b6f477d2cd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/ce3b8d84-1df5-45cb-a3f8-e0ec51cd90b5.png?resizew=556)
【变式探究】(2)如图2,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231b6102ed398670b586cc300dfb9510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3de20ba8bda63c650ef571be155702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f34868b311f1082fb003dec7f07cdfd2.png)
【拓展应用】(3)如图3,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6e4a2df58a236c20df5df0d29a466c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7099026716ee1821dd7d9f157dc055f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e63ebd12f01c7cdc6003bb226eadfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7faabc484ce3666706c1beffda4bcfe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345c91c9e67e6ee00a872078ab17f094.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
①试判断线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
②如图4,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c7dc583a8b998eee4e26313e2a7d911.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐2】二次函数
的图象与
轴交于点
,与
轴交于点
、![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae98e82c7e1c1bec64132eba5b74ea6e.png)
(1)求
、
的值;
(2)
是二次函数图象在第一象限部分上一点,且
,求点P的坐标.
(3)在(2)的条件下,有一条长度为
的线段
落在
上(
与
重合,
与
重合),将线段
沿
轴正方向以每秒
个单位向右平移,设移动时间为
秒,当四边形
周长最小时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/415ce7008a89ffca8c3c3edbf13a935e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae98e82c7e1c1bec64132eba5b74ea6e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/13/f243b871-695d-4d14-9a54-d71190bc8d78.png?resizew=279)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a06f34b6c202ffd0c0bee3acf99be93d.png)
(3)在(2)的条件下,有一条长度为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae7a3e520a16d4fdd73c4e6a4ce7be0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc44baef2e97d5aba3ca5eb861a09902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc4e3f8fb0245e64b0064a7e7e74db5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次