如图,边长为4的正方形
有对角线
、
相交于O,有直角
,使直角顶点P与点O重合,直角边
、
分别与
、
重合,然后逆时针旋转,旋转角为
,
、
分别交
、
于
、
两点,连接
交
于点G.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/17/a0c3cf85-9239-426c-ac65-61232f6f3f57.png?resizew=152)
(1)求证:
;
(2)若
,求EF的长;
(3)在旋转过程中,当
与
的面积之和最大时,求AE的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45a8a837c11c07073da3ff751d70278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1717314024628bad573a7b1bde9c8e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/17/a0c3cf85-9239-426c-ac65-61232f6f3f57.png?resizew=152)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcf2e3236ea30ee2c37928b98041f13a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c7492e85faa7c77dd4df6d0bd01fe9.png)
(3)在旋转过程中,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a54de7e539151a11b1aeed986057c6b5.png)
更新时间:2023-05-08 10:18:25
|
相似题推荐
解答题-证明题
|
较难
(0.4)
名校
【推荐1】如图,已知正方形
,点
是边
上的一个动点(不与点
、
重合),点
在
上,满足
,延长
交
于点
.
;
(2)连接
.
①当
时,求
的值.
②如果
是以
为腰的等腰三角形,直接写出
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5fc6ead6416492c231c320a5486f86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.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/c0ae95de31c400a73ad206afed63d0b5.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b670ec1599330f6af99c600404afcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/399e302b4df500446567f2b7f6d5d8d7.png)
②如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff39c7aa648afd1080206c8080ff79e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e99c17d72c203b50802f19d4731545.png)
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解答题-证明题
|
较难
(0.4)
【推荐2】如图,正方形
的边长为
,射线
是
外角的平分线,点
在边
上运动(不与点
、
重合),点
在射线
上,且
,
与
相交于点
,连结
、
、
.
(1)求证:
;
(2)求
的周长(用含
的代数式表示);
(3)试探索:点
在边
上运动至什么位置时,
的面积最大.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22569e5010fe900eaefc4a025c774b26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/20/8b07657f-cbb5-4961-842a-08b2dad35ad4.png?resizew=194)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c0d6068866683547b733dbe005031a6.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00870385ca7f3214e2971779eb4c7904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)试探索:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66eae532e1a1551cfc7b5ff9cfc5aa9.png)
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解答题-作图题
|
较难
(0.4)
【推荐1】等边
中,
、
分别是边
、
边上的点,
,以
、
为邻边作菱形
,连
,
为
中点,连
、
.
(1)作出
关于点
成中心对称的
,并证明:
;
(2)将菱形
绕点
旋转:
①如图2,确定线段
与线段
的关系,并证明你的结论.
②若
,
,菱形
在旋转过程中,直接写出线段
的最大值是_____,最小值是______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eaffcd2070bfcb1955e2cab66c26c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2f3df5713a423887c16e6355236372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f541f7ae7c39082d202efd28805c54e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/25/67d0e9a7-222e-4045-931c-f4389c1aac7a.png?resizew=295)
(1)作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b51d3992644d37dc71c9b5a97d515c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a551505ae42b49904bab59b17012d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6c457170a1cc059a337152ec3f83ab3.png)
(2)将菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2f3df5713a423887c16e6355236372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
①如图2,确定线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f541f7ae7c39082d202efd28805c54e.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e2a44d05b1d387150c4b359e021ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2f3df5713a423887c16e6355236372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
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解答题-证明题
|
较难
(0.4)
【推荐2】在正方形ABCD中,AB=2
,O为对角线AC、BD的交点.
(1)如图1,延长OC,使CE=OC作正方形OEFG,使点G落在OD的延长线上,连接DE、AG.求证:DE=AG;
(2)如图2,将(1)中的正方形OEFG绕点O逆时针旋转α角(0°<α<180°)得到正方形
,连接
,
.
①当
⊥AC时,求
的面积;
②在旋转过程中,直接写出
面积的最小值,并写出此时旋转角α等于多少度?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(1)如图1,延长OC,使CE=OC作正方形OEFG,使点G落在OD的延长线上,连接DE、AG.求证:DE=AG;
(2)如图2,将(1)中的正方形OEFG绕点O逆时针旋转α角(0°<α<180°)得到正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823758dbdf05c9dc277eebabd5d76c72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c6fba8bd2811cc07467e7ba64b9264b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6c919101f0407625b03cab7aae20fc.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5f571c562034722d4b22abd59bb3c6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbec5141187e1dbf71b1e20809b86db8.png)
②在旋转过程中,直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbec5141187e1dbf71b1e20809b86db8.png)
![](https://img.xkw.com/dksih/QBM/2021/7/21/2768775679451136/2779831424204800/STEM/f1311701ff0e4308a706bde54ab7808c.png?resizew=340)
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【推荐3】综合与实践
综合与实践课上,老师与同学们以“特殊的三角形”为主题开展数学活动.
(1)操作判断
如图1,在
中,
,点P是直线
上一动点.
操作:连接
,将线段
绕点P逆时针旋转90°得到
,连接
,如图2.
根据以上操作,判断:如图3,当点P与点A重合时,则四边形
的形状是 ;
(2)迁移探究
①如图4,当点P与点C重合时,连接
,判断四边形
的形状,并说明理由;
②当点P与点A,点C都不重合时,试猜想
与
的位置关系,并利用图2证明你的猜想;
(3)拓展应用
当点P与点A,点C都不重合时,若
,请直接写出
的长.
综合与实践课上,老师与同学们以“特殊的三角形”为主题开展数学活动.
(1)操作判断
如图1,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea71984f1e84123b0abe5ba92cb177cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
操作:连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
根据以上操作,判断:如图3,当点P与点A重合时,则四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)迁移探究
①如图4,当点P与点C重合时,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f8abda6a85e7ef6f281fc2df853fa.png)
②当点P与点A,点C都不重合时,试猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(3)拓展应用
当点P与点A,点C都不重合时,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e7aa88809ea2e4e0627b7e9663d445.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/29/dcee2105-d285-4aa2-be73-4662a12c723c.png?resizew=372)
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解答题-问答题
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较难
(0.4)
【推荐1】如图,在直角坐标平面
中,点A在y轴的负半轴上,点C在x轴的正半轴上,
,抛物线
经过A、B、C三点.
(2)联结
、
、
,当
时,
①求抛物线表达式:
②在抛物线的对称轴上是否存在点P,使得
?如果存在,求出所有符合条件的点P坐标;如果不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d6245dc8ff4aed77be12c4a612aff3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ea902940ba874c12d9a0812e2c2ca9c.png)
(2)联结
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/464e16e3387532eb66521b4e97791cae.png)
①求抛物线表达式:
②在抛物线的对称轴上是否存在点P,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bac908cb364859d9031e90910418717.png)
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解答题-证明题
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较难
(0.4)
【推荐2】如图①,在正方形
中,点E与点F分别在线段
上,且四边形
是正方形.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/c24c131d-045b-482a-93ca-0867b5c7e3ba.png?resizew=192)
(1)求证:
,
.
(2)如图②若将条件中的四边形
与四边形
由正方形改为矩形时.
①若
,
,过点E作
,分别交
于点N,M.求:
的值;
②在第①条件下,当
为等腰三角形时,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5345f892125374809bcaaab5da8d3f5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2257da1e2425f2ea9ac7440f52659ff.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/c24c131d-045b-482a-93ca-0867b5c7e3ba.png?resizew=192)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/343f75b2c5479c279abca2faed278901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e79216c6a32bb699aeb36144da020490.png)
(2)如图②若将条件中的四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2257da1e2425f2ea9ac7440f52659ff.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aa9ef3ee8838c3e3f5ecdfd0c093418.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83fe060a37a93ea736e9c3d444809cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc046ee7804a9ff650a90b23e9805f1e.png)
②在第①条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/79ce87f2-ec30-448b-a7b3-a849979e06e3.png?resizew=206)
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解答题-问答题
|
较难
(0.4)
名校
【推荐1】在平面直角坐标系xOy中,直线y=x+2经过点A(m,-2),将点A向右平移7个单位长度,得到点B,抛物线
的顶点为C.
(1)求m的值和点B的坐标;
(2)求点C的坐标(用含n的代数式表示);
(3)若抛物线与线段AB只有一个公共点,结合函数图象,求n的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/285dfcc855a9c54363b35ea3c17f9629.png)
(1)求m的值和点B的坐标;
(2)求点C的坐标(用含n的代数式表示);
(3)若抛物线与线段AB只有一个公共点,结合函数图象,求n的取值范围.
![](https://img.xkw.com/dksih/QBM/2019/4/13/2181487312322560/2182829520560128/STEM/73ba353f10924404bbe61f54db976653.png?resizew=249)
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解答题-问答题
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较难
(0.4)
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【推荐2】如图,抛物线
经过点
,点
,与y轴交于点C.点P是抛物线上的动点,且横坐标为m.过点P作y轴的平行线,交直线
于点Q,以
为边,在
的右侧作正方形
.
(2)点P在直线
上方的抛物线上运动时,直接写出
的长.(用含m的代数式表示)
(3)抛物线的顶点落在正方形
的边上(包括顶点)时,求m的值.
(4)当此抛物线在正方形
内部的图象的最高点与最低点的纵坐标之差为2时,直接写出m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ef03f452410ab19c6246567c427178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ac79e422ba4876949f0514c44539b1.png)
(2)点P在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
(3)抛物线的顶点落在正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ac79e422ba4876949f0514c44539b1.png)
(4)当此抛物线在正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ac79e422ba4876949f0514c44539b1.png)
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