已知在菱形
中,
,点M在
上,点E在线段
上,将射线
绕点M顺时针旋
,得到射线
交直线
于点F,连接
.
和
之间的数量关系为__________.
【类比探究】(2)如图2,当点M在
边上时,题(1)中的结论是否成立?并说明理由.
【拓展延伸】(3)如图3,当点M在
延长线上时,
交线段
于点N,射线
和
交于点Q,且经过点C,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce6c0e9de83f2e64ae33609fc08459d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d5147cea4c9ce855074864fe54506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce6c0e9de83f2e64ae33609fc08459d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d5147cea4c9ce855074864fe54506.png)
【类比探究】(2)如图2,当点M在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
【拓展延伸】(3)如图3,当点M在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce6c0e9de83f2e64ae33609fc08459d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c2b9ee0251f58793a6991abbea2b77e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92460436b43238a25c276e01a695acfa.png)
更新时间:2024-05-16 16:50:37
|
相似题推荐
解答题-证明题
|
较难
(0.4)
【推荐1】如图1,在等腰
中,
,点
是
外一点,点
在线段
上,
平分
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/98392170-ccb9-47ad-91d4-7c06a08f0d63.png?resizew=468)
(1)求证:
;
(2)如图2,
,过
作
,垂足为
交
于
,请探索
之间的数量关系,并证明;
(3)如图3,在(2)的条件下,线段
与
交于点
(
在线段
上),在线段
上取点
,使得
. 已知
,当
的值最小时,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](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/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a34228c2e9340b225b7281383b24d3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/98392170-ccb9-47ad-91d4-7c06a08f0d63.png?resizew=468)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c1016bc9ef1c728bccf070a6e4a532f.png)
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b917803e66b0e3f79e56ad282b2d0613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be742533a98206940a01156e5cd9ae30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c424290b20dd45d367745b892c8eb16.png)
(3)如图3,在(2)的条件下,线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6f2e91007fc5e0538915adc08c0fd26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22c1671cab99ab5d67a2d65934dc2b56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c779439b411bc9c571be892160260b6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b6d8d81133909083b2a394039aa7c5d.png)
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解答题-证明题
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【推荐2】平面直角坐标系
中,已知
.点
是x轴上的一个动点(不与点A重合),点
在y轴上,线段
交直线
于点C,过点P作
,垂足为D.
(1)直接写出线段
的长度(用含x的代数式表示),并直接写出
的长度关系和
的度数;
(2)如图1,当点P在线段
上时,联结
,若四边形
的面积等于4,求此时点P的坐标;
(3)线段
之间是否存在某种数量关系?请按照以下步骤进行探究:
①如图1,当点P在线段
上时,求证:
;
②当点P在x轴上运动时,
这个结论总是成立吗?如果成立,请说明理由;如果不成立,根据点P的不同位置特征画出图形,直接写出线段
之间的数量关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d801297de80b335b19999b692f65de83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28d93b24dee2e45c97967316a0ac21ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c785ffb08e824eeaf70b69186d8e1aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545e18836bc7fee22f8f813a6f525d93.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/2/3772d571-cc5a-4948-8931-ab32b7adb0c7.png?resizew=615)
(1)直接写出线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ddfa25e097562b856ddd5e7c0758ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ddfa25e097562b856ddd5e7c0758ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a457b899731577bfe61dda594ae4eec4.png)
(2)如图1,当点P在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103f89feb6e4cbb0bb2b90e0b40ea9ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf5d772052c651b7f0ed770487ccf983.png)
(3)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c0e1db02ed7997309a3a93750f0636.png)
①如图1,当点P在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc4c3ec9d4c2de3d15254cfd6733fdf.png)
②当点P在x轴上运动时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc4c3ec9d4c2de3d15254cfd6733fdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c0e1db02ed7997309a3a93750f0636.png)
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解答题-作图题
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较难
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解题方法
【推荐1】已知:等边
中,点
是边三边垂直平分线的交点,点
,
分别在直线
,
上,
(1)如图,
;
![](https://img.xkw.com/dksih/QBM/2021/7/1/2754888788598784/2787198841815040/STEM/91877149-b6a1-402a-8502-2214a987e7c3.png)
(2)如图,点
、
分别在边
、
上时,
,求
的度数;
![](https://img.xkw.com/dksih/QBM/2021/7/1/2754888788598784/2787198841815040/STEM/93646329-d1e4-449c-abbc-5c5b3fe55628.png)
(3)当点
在边
上,点
在
的延长线上时,
,请你在图中补全图形,标出相应字母,此时线段
、
、
三者的数量关系是怎样的?并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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)
(1)如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/021bc0ff7e36c9d6d70ddd2e51e8c04c.png)
![](https://img.xkw.com/dksih/QBM/2021/7/1/2754888788598784/2787198841815040/STEM/91877149-b6a1-402a-8502-2214a987e7c3.png)
(2)如图,点
![](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/d4b3dafe2e8b91a99510d75d8681a9c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbee6d5731d6f4bb1e4f2ba3d89b7dc.png)
![](https://img.xkw.com/dksih/QBM/2021/7/1/2754888788598784/2787198841815040/STEM/93646329-d1e4-449c-abbc-5c5b3fe55628.png)
(3)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf6e6db6cf8adc42f315aa40b28262dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/2021/7/1/2754888788598784/2787198841815040/STEM/859d05c7-a192-435e-be31-fa67c578670d.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐2】如图在平面直角坐标系中,点
,点
是
轴上方的点,且
,
、
分别平分
、
,过点
作
,与
的延长线交于点
.
![](https://img.xkw.com/dksih/QBM/2020/2/1/2389724863266816/2390993680187392/STEM/1d2cac28b0e04559910545499a5c93ac.png?resizew=245)
(1)当
时,求
的长.
(2)求证:
.
(3)若
的中点为
,探究点
横坐标的规律.
特殊情况探究:①当
时,求出此时点
的横坐标为6,②当
时,求得此时点
的横坐标为______.
一般情况探究:③当
时,点
横坐标的规律是什么?并证明这个规律.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/109a293cef44f23e86e22c1a4cfcbbe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55e2857963e3ea3578e9a13638c3a2c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3daae8ec60b2b1f7577dee687247cebb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35333abd7f02d663d15251bc5cbbf921.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/2020/2/1/2389724863266816/2390993680187392/STEM/1d2cac28b0e04559910545499a5c93ac.png?resizew=245)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1eb76fe74cba30f7cbcde349ba80da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a3dd8338481aaf8a2ac2d1f0ef8c5e.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
特殊情况探究:①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7099026716ee1821dd7d9f157dc055f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32436704a722d5e568ff5c175bf3c662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
一般情况探究:③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6988b81937a2b98659c359d9ed686146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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解答题-证明题
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较难
(0.4)
【推荐1】点E、F分别是□ABCD的边BC、CD上的点,∠EAF=60°,AF=4
(1) 若AB=2,点E与点B、点F与点D分别重合,求平行四边形ABCD的面积;
(2) 若AB=BC,∠B=∠EAF=60°,求证:△AEF为等边三角形;
(3) 若BE=CE,CF=2DF,AB=3,直接写出AE的长度(无需解答过程).
(1) 若AB=2,点E与点B、点F与点D分别重合,求平行四边形ABCD的面积;
(2) 若AB=BC,∠B=∠EAF=60°,求证:△AEF为等边三角形;
(3) 若BE=CE,CF=2DF,AB=3,直接写出AE的长度(无需解答过程).
![](https://img.xkw.com/dksih/QBM/2018/8/23/2016838326411264/2020362248355840/STEM/f451f5b7bbda4ee0a1979011babfdd22.png?resizew=438)
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解答题-问答题
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较难
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【推荐2】综合与实践
在数学综合实践课上,老师让同学们探究等腰直角三角形中的折叠问题.
引入:
如图,在
中,
,
,点
在边
上运动,点
在边
上运动.
,当沿
折叠,点
落在边
的点
处,且
时,
______;四边形
的形状是______;
拓广:
(2)如图
,奇异小组同学的折叠方法是沿
折叠,点
落在点
处,延长
交
于点
,
,点
在边
上运动,沿
折叠使点
落在线段
的中点
处,求线段
的长;
应用:
(3)沿
折叠,点
的对应点
恰好落在边
的三等分点处,请借助图
探究,并直接写出
的长.
在数学综合实践课上,老师让同学们探究等腰直角三角形中的折叠问题.
引入:
如图,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6060d9a82ed5405a1ea8cd824448b6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4974394f5fcfa295cba28c523c8b4cd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/817173638039c801a35c151e6f92d884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/744cc4f95381f164080d097f1825a5ed.png)
拓广:
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da650ee630c36fd5ce9abb4fb826df7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1192fc83f2c50f64fcfa5c86f2a741e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da650ee630c36fd5ce9abb4fb826df7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
应用:
(3)沿
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
您最近一年使用:0次
解答题-计算题
|
较难
(0.4)
解题方法
【推荐3】综合与探究
如图,抛物线
与
轴交于
两点,与
轴交于点
.点
是射线
上一点,过点
作直线
,与
轴右侧的抛物线交于点
.点
从点
出发,沿射线
以每秒1个单位长度的速度向右运动,设点
运动的时间为t秒.请解答下列问题:
(1)求直线AC的表达式与点
的坐标;
(2)在点
运动的过程中,若以点
,
,
,
为顶点的四边形是平行四边形,求运动的时间
;
(3)设点
与点
关于直线
对称,
①点
的坐标为 (用含
的代数式表示,结果需化简);
②当点
落在抛物线
的对称轴上且点
在线段
上时,在平面内是否存在点F,使得以点
,
,
,F为顶点的四边形为菱形?若存在,请求出此时点F的坐标;若不存在,请说明理由.
如图,抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/097f9b9dede6680798a9f917c84f5465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb398137779190b35492d9f06d5fbc3.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/dad2a36927223bd70f426ba06aea4b45.png)
![](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/062a79c11c1a48235bc26fec82d50d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)求直线AC的表达式与点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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)
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
①点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
②当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/097f9b9dede6680798a9f917c84f5465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/28/e0857142-5688-4df6-ab2e-214d8e271bae.png?resizew=338)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
解题方法
【推荐1】如图, 在平面直角坐标系
中, 点
坐标为
, 点
在
轴正半轴上,直线
经过点
、
,且
,
(1)若点
的坐标为
,求直线
的表达式;
(2)反比例函数
的图像与直线
交于第一象限的
、
两点
,当
时,求
的值(用含
的式子表示);
(3)在(1)的条件下,设线段
的中点为
,过点
作
轴的垂线,垂足为
,交反比例函数
的图像于点
,分别连接
、
, 当
与
相似时,请直接写出满足条件的
值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/082db7ab9d4de700460ec6327ab7bd8f.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/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/19e87e3b2db3689cd11bcd30cea9ebe4.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/623afc24f2227004b0e1b3922dfb954b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)反比例函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54cec401b13d837b0cc8040d15a7a37f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef1dbceb08a720a2490b069f1442f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50196d293a863fe2f9e46199052ab8c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)在(1)的条件下,设线段
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb79a1b0c6dc78e6de17de6bed477fb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc869125145c0139d92490a41bd3918.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bf7264407abc7b2e3b2ef4baa13da06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://img.xkw.com/dksih/QBM/2020/7/12/2504180306837504/2504875013120000/STEM/82e86ad7cb61498fac5335f43d40fff2.png?resizew=115)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐2】已知抛物线
与
轴交于点
,
,与
轴交于点
,顶点为
,抛物线的对称轴交
轴于点
.
(1)求抛物线的表达式和顶点P的坐标;
(2)已知抛物线
与抛物线
关于点
中心对称,点
的对称点为点
,点
的对称点为点
,若
,求抛物线
的表达式..
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04be2c79a792c5f15de83506382d192.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae140e4db2c5563e5f902fcbebaac262.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/8455657dde27aabe6adb7b188e031c11.png)
(1)求抛物线的表达式和顶点P的坐标;
(2)已知抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed83ef3395d03bbca7e86ff374002bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62769b7177ef4bc952dc1dd51d6b510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e7c6ca3c021864bb92af1670c98da7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcf90af48c665ee801c05cc55914b8fd.png)
您最近一年使用:0次
解答题-问答题
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较难
(0.4)
名校
解题方法
【推荐3】几何探究:
【问题发现】
(1)如图1所示,△ABC和△ADE是有公共顶点的等边三角形,BD、CE的关系是_______(选填“相等”或“不相等”);(请直接写出答案)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/27/ea3f6fd1-25ed-437c-a5b9-390a8e66ff75.png?resizew=265)
【类比探究】
(2)如图2所示,△ABC和△ADE是有公共顶点的含有
角的直角三角形,(1)中的结论还成立吗?请说明理由;
【拓展延伸】
(3)如图3所示,△ADE和△ABC是有公共顶点且相似比为1 : 2的两个等腰直角三角形,将△ADE绕点A自由旋转,若
,当B、D、E三点共线时,直接写出BD的长.
【问题发现】
(1)如图1所示,△ABC和△ADE是有公共顶点的等边三角形,BD、CE的关系是_______(选填“相等”或“不相等”);(请直接写出答案)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/27/ea3f6fd1-25ed-437c-a5b9-390a8e66ff75.png?resizew=265)
【类比探究】
(2)如图2所示,△ABC和△ADE是有公共顶点的含有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
【拓展延伸】
(3)如图3所示,△ADE和△ABC是有公共顶点且相似比为1 : 2的两个等腰直角三角形,将△ADE绕点A自由旋转,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c1ac2e11788860424508ea9e80cf89d.png)
您最近一年使用:0次