如图1,在矩形
中,
,
,点E是
边上一动点(点E不与A,D重合),连接
,以
为边在直线
的右侧作矩形
,使得
,
交直线
于点H.
(1)【尝试初探】求证:
.
(2)【深入探究】若
,随着E点位置的变化,H点的位置随之发生变化,当点H是线段
中点时,求
的长度.
(3)【拓展延伸】连接
,
,当
是以
为腰的等腰三角形时,求
的长度(用含n的代数式表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c2dfe278dcbb58b0c5c2cbebafab27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e279ad372652147be73c8a834734df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbad79bda3558b9bf44c0c668e8bf9cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/3/4a7fec3d-fcf7-47ce-862d-f575a37fe6a2.png?resizew=378)
(1)【尝试初探】求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0df09e4519e253152e0253b9143b5625.png)
(2)【深入探究】若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc2d3df37e73a8abea815f37dbb3fff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(3)【拓展延伸】连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83f1f880e5ffbff036953acaca90c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/378f75f81c44553787e0fa2f8a28c794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83f1f880e5ffbff036953acaca90c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
更新时间:2023-06-01 17:42:46
|
相似题推荐
解答题-证明题
|
较难
(0.4)
【推荐1】已知:在
中,作
平分线
,在
上找一点D,使得
,过点D作
,交直线
于点E.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/26/00e4c77c-38c2-45ce-93f5-3936f0420db1.png?resizew=258)
(1)依题意补全图形;
(2)用等式写出
、
、
之间的数量关系,并给出证明;
(3)如果把作
的平分线
,改为作
的外角
的平分线
,其他条件不变,直接用等式写出
、
、
之间的数量关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9869822f1a7b7cbe6746ab474358b336.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffd657e48b15b9b54a55817e2c26b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/26/00e4c77c-38c2-45ce-93f5-3936f0420db1.png?resizew=258)
(1)依题意补全图形;
(2)用等式写出
![](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/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(3)如果把作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09bebb16c0ffc99a945619ae0986cadd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.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/85c4bdfb0db1e31e8459df1d15f9ab55.png)
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【推荐2】如图1,在
中,
,点P从点A出发,以每秒1个单位长度的速度沿路线
运动.设点P的运动时间为t秒.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/15/f38a2811-9bd0-41b1-a6c5-97371a31210c.png?resizew=742)
(1)
_________;当点P在
上时,
_________(用含t的代数式表示);
(2)如图2,若点P在
的角平分线上,求t的值;
(3)在整个运动过程中,当
是等腰三角形时,求t的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3755b855978d2df812eae501bf48039.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e06dc307ebab89176dd5e32d295d6c6f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/15/f38a2811-9bd0-41b1-a6c5-97371a31210c.png?resizew=742)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae248960d8c1677cf948f8251275e863.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc2ddabf078c1b683b067eb1aee1969.png)
(2)如图2,若点P在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
(3)在整个运动过程中,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
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【推荐1】如图,已知
中,
,以
为直径的
交
于
,过点
作
的切线交
的延长线于点
.
于
,
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/239c6f64-c51b-4a02-b577-6effa4d76614.png?resizew=174)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45087cde2d66377517a3fce5553b35.png)
(2)若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827beb23a9fe02a8b588645bcb82ce67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/239c6f64-c51b-4a02-b577-6effa4d76614.png?resizew=174)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45087cde2d66377517a3fce5553b35.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d3e847a4232dbc6dc341265c25ccd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
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(0.4)
名校
【推荐2】如图,点A、F、C、D在同一直线上,点B和点E分别在直线AD的两侧,且AB=DE,∠A=∠D,AF=DC.
(1)求证:四边形BCEF是平行四边形;
(2)若∠DEF=90°,DE=8,EF=6,当AF为 时,四边形BCEF是菱形.
(1)求证:四边形BCEF是平行四边形;
(2)若∠DEF=90°,DE=8,EF=6,当AF为 时,四边形BCEF是菱形.
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解答题-问答题
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【推荐1】如图1,在平面直角坐标系xOy中,等腰直角△AOB的斜边OB在x上,顶点A的坐标为(3,3).
(1)求直线OA的解析式;
(2)如图2,如果点P是x轴正半轴上的一个动点,过点P作PC∥y轴,交直线OA于点C,设点P的坐标为(m,0),以A、C、P、B为顶点的四边形面积为S,求S与m之间的函数关系式;
(3)如图3,如果点D(2,a)在直线AB上. 过点O、D作直线OD,交直线PC于点E,在CE的右侧作矩形CGFE,其中CG=
,求矩形CGFE与△AOB重叠部分为轴对称图形时m的取值范围.
(1)求直线OA的解析式;
(2)如图2,如果点P是x轴正半轴上的一个动点,过点P作PC∥y轴,交直线OA于点C,设点P的坐标为(m,0),以A、C、P、B为顶点的四边形面积为S,求S与m之间的函数关系式;
(3)如图3,如果点D(2,a)在直线AB上. 过点O、D作直线OD,交直线PC于点E,在CE的右侧作矩形CGFE,其中CG=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://img.xkw.com/dksih/QBM/2017/4/28/1675359374835712/1735582083866624/STEM/0d6347cd10c146c589d8f7c990426458.png?resizew=525)
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名校
【推荐2】如图,在平面直角坐标系中,直线
与x轴交于点A,与y轴交于点B,把△COB沿BC翻折,点O恰好落在AB边的点D处,BC为折痕.
![](https://img.xkw.com/dksih/QBM/2021/7/22/2769793354366976/2774875986796544/STEM/e720ae8b-b135-4424-92ef-34ba649eacd1.png)
(1)求线段AB的长;
(2)求直线BC的解析式;
(3)若M是射线BC上的一个动点,在坐标平面内是否存在点P,使以A、B、M、P为顶点的四边形是矩形?若存在,请直接写出点P的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8648fb5353d892f0504ca5302a19d132.png)
![](https://img.xkw.com/dksih/QBM/2021/7/22/2769793354366976/2774875986796544/STEM/e720ae8b-b135-4424-92ef-34ba649eacd1.png)
(1)求线段AB的长;
(2)求直线BC的解析式;
(3)若M是射线BC上的一个动点,在坐标平面内是否存在点P,使以A、B、M、P为顶点的四边形是矩形?若存在,请直接写出点P的坐标;若不存在,请说明理由.
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解答题-问答题
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【推荐1】定义1:如图1,把平面内一条数轴
绕原点
逆时针旋转![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
得到另一条数轴
,
轴和
轴构成一个平面斜坐标系.规定:过点
作
轴的平行线,交
轴于点
,过点
作
轴的平行线,交
轴于点
,若点
在
轴上对应的实数为
,点
在
轴上对应的实数为
,则称有序实数对
为点
的斜坐标,实数
为点
的横坐标.
定义2:在平面斜坐标系
中,若
与
有且只有两个公共点,其中一个公共点为点
,另一个公共点在边
上(不与点
重合),则称
为
的“点
关联三角形”.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/2/26a31f10-bfae-4f85-b1b3-2702864ee2df.png?resizew=389)
(1)已知
的半径为
,
为
的“点
关联三角形”.
①如图2,点
,
,点
的横坐标的最小值为 ,在
,
这两个点中,点
可以与点 重合;
②若点
,点
,
,
,
,点
在
轴下方.求满足条件的点
轨迹长度;
(2)已知
的半径为
,点
,点
.若平面斜坐标系
中存在点
,使得
是等边三角形,且
为
的“点
关联三角形”,直接写出
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf1462447358f707b7a4486f54d4d719.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/5963abe8f421bd99a2aaa94831a951e9.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
定义2:在平面斜坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0520e9675bc1b416e8b8f01eb69fd13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/2/26a31f10-bfae-4f85-b1b3-2702864ee2df.png?resizew=389)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
①如图2,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87baa7770b063bfe7cd8f8fce57d9181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e62dfe60e2f098c466a048b982151365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb7471b43468522805db8b715ca960a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2555986108fe0a6c73d5dbf111449e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
②若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/038859f0522418265bc7cd9b2f9ed64e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9142db4dd2ef151bf3d4a63afb61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6e4a2df58a236c20df5df0d29a466c.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/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c4ed468bcb311979a392c776ee12e0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d03310fa9440053c57d878acc06d02d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
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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,在平面直角坐标系中,矩形OABC的顶点A(3,0),C(0,1).将矩形OABC绕原点逆时针旋转90°,得到矩形OA′B′C′.设直线BB′与x轴交于点M、与y轴交于点N,抛物线y=ax2+bx+c的图象经过点C′、M、N.解答下列问题:
(1)求出该抛物线所表示的函数解析式;
(2)在抛物线上有一点E,且点E在C′的左侧,过点E作EF⊥x轴,垂足为点F,若△EFM与△MON相似,求点E的坐标;
(3)在抛物线上是否存在一点P(C′点除外),使得∠PMN=∠OMN,若存在,写出点P坐标,不存在,写出理由.
(1)求出该抛物线所表示的函数解析式;
(2)在抛物线上有一点E,且点E在C′的左侧,过点E作EF⊥x轴,垂足为点F,若△EFM与△MON相似,求点E的坐标;
(3)在抛物线上是否存在一点P(C′点除外),使得∠PMN=∠OMN,若存在,写出点P坐标,不存在,写出理由.
您最近一年使用:0次