名校
1 . 如图①,在
中,延长AC到D,使
,E是AD上方一点,且
,连接
.
![](https://img.xkw.com/dksih/QBM/2024/3/11/3451245651001344/3452007717650432/STEM/aa37f2d50d0542f081b35083a0642798.png?resizew=554)
(1)求证:
是等腰三角形;
(2)如图①,若
,将
沿直线
翻折得到
,连接
和
,
与
交于F,若
,求证:F是
的中点;
(3)在如图②,若
,
,将
沿直线
翻折得到
,连接
交
于F,交
于G,若
,
,求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df4a2a127d89d50d3fde881a9b58ef0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1857fd0d79fb8cbb8045e949984104e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/2024/3/11/3451245651001344/3452007717650432/STEM/aa37f2d50d0542f081b35083a0642798.png?resizew=554)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
(2)如图①,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d30252720ff0a2b1f105523e9aa3b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926d2094777538ba6a70ea65d5061ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f0ae0d8e74c9ca1708ce83c36c94df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926d2094777538ba6a70ea65d5061ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c077d15159e66b99475428c0076a872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926d2094777538ba6a70ea65d5061ef7.png)
(3)在如图②,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d30252720ff0a2b1f105523e9aa3b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926d2094777538ba6a70ea65d5061ef7.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/5a3d296e0d7154a170cb7d3ae42989b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a320a33ee2c9a87642264a06b47d9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
您最近一年使用:0次
2024-04-08更新
|
181次组卷
|
3卷引用:四川省成都市武侯区成都市玉林中学2023-2024学年八年级下学期4月月考数学试题
四川省成都市武侯区成都市玉林中学2023-2024学年八年级下学期4月月考数学试题湖南省张家界市慈利县2023-2024学年八年级上学期期末数学试题(已下线)特色题型专练10 三大运动-翻折-备战2024年中考数学考试易错题(江苏专用)
名校
2 . 如图,在
中,
,
,
平分
交
于点E,
于点D,
交
的延长线于M,连接
.下列结论:①
,②
,③
,④
,⑤
;其中正确的结论有______ .
![](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/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84be64d28b1623e71ad989f37336b1f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba870ac7e456d8daa098c9d52aeccc2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3a8550e95c4f3b966b0e262b3c1bb26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f07015a11b7ef7e6e834ca04cad836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532aece6cfd67e2a97977eed978dbf2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25ab46164b23af7a4c4907f176e392ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a519c8ae95be9cc109e8bd140bc7d3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/462d957f-bd6e-411d-935f-b8398b243f68.png?resizew=139)
您最近一年使用:0次
3 . 如图,在
中,
,
,BE平分
交CD于F,
于H,则下列结论错误的选项的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/7583f9dd-4711-4aa5-9705-33ec5020cade.png?resizew=211)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/676991d6c2041e4da1f5e250331c6cc3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/7583f9dd-4711-4aa5-9705-33ec5020cade.png?resizew=211)
A.![]() | B.![]() |
C.![]() | D.若![]() ![]() |
您最近一年使用:0次
4 . 如图,在
中,
,三角形的顶点在相互平行的三条直线
上,且
之间的距离为1
之间的距离为3,则
的长是_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/343d71f2bceb13e25dddc18dbf1db403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/285e69b158ce4a51538939451538efdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531322f8ec2d4d27f8cc421ee67e7d14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea26d0de7d9d29c921e18aedf56f5a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/6703d576-0578-4a41-a967-f964d20eace1.png?resizew=168)
您最近一年使用:0次
5 . 如图,
内接于
,
是
的直径,D为
的中点,连接
并延长交
于点E,过点E作
的平行线交
的延长线于点F,连接
,与
交于点G.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/6/e94e5f2e-6ee3-49b7-810c-8b4ea5574aa2.png?resizew=182)
(1)求证:
是
的切线;
(2)若
,
,求
的长.
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/6/e94e5f2e-6ee3-49b7-810c-8b4ea5574aa2.png?resizew=182)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec67259153551e67bb3e035d11dc9334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52f3321cf997b39bffe9d9463b44b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
您最近一年使用:0次
2024-04-06更新
|
87次组卷
|
2卷引用:2023年四川省成都市九年级中考模拟测试数学模拟预测题(二)
6 . (1)如图①,
,射线
在这个角的内部,点
、
在
的边
、
上,且
于点
于点
,证明:
;
(2)迁移应用:如图②,点
在
的边
、
上,点
在
内部的射线
上,
分别是
的外角,已知
,猜想
与
的关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39cb59543ccf42b37ebce3f67416e561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.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/358c69b4f6c350c35d19d33c69f2a2a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4860a6a3259210097f6a5db5f42aa27b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe4a679bef2334b4fa7634dc12fcc38c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d51dabe484c55e0cd5155b76c19b8307.png)
(2)迁移应用:如图②,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0691774b9d0d680944906fd6ac8f180.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358c69b4f6c350c35d19d33c69f2a2a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41a460f95e8ebabac97d572fecea8fb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358c69b4f6c350c35d19d33c69f2a2a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdeece6850627462444c03d2e33ad231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5959b02efe53e2e112b38f14c7a5c805.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fc9bda462189b8cc01ec18dce6a166d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46eff962f5d84f4de1caae80103d43c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/6/021ffe29-0404-4c03-b500-5b66ccf39077.png?resizew=294)
您最近一年使用:0次
2024-04-06更新
|
298次组卷
|
6卷引用:四川省绵阳市涪城区2023-2024学年八年级上学期10月月考数学试题
四川省绵阳市涪城区2023-2024学年八年级上学期10月月考数学试题四川省宜宾市叙州区叙州区龙文学校2023-2024学年八年级上学期11月月考数学试题山东省聊城市东阿县实验中学2023-2024学年八年级上学期9月月考数学试题甘肃省庆阳市2023-2024学年八年级上学期期中数学试题江苏省镇江市2023-2024学年八年级上学期10月月考数学试题(已下线)专题4.17 三角形全等几何模型(一线三直角)(培优练)-2023-2024学年七年级数学下册基础知识专项突破讲与练(北师大版)
名校
7 . (1)【探究发现】如图①,已知矩形
的对角线
的垂直平分线与边
,
分别交于点E,F.求证:四边形
是菱形;
分别交矩形
的边
,
于点E,F,将矩形
沿
翻折,使点C的对称点与点A重合,点D的对称点为
,若
,
,求四边形
的周长;
(3)【拓展延伸】如图③,直线
分别交平行四边形
的边
,
于点E,F,将平行四边形
沿
翻折,使点C的对称点与点A重合,点D的对称点为
,若
,
,
,求
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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9766e5eb6796dafc5ffe212afdfc43c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369eb8ad56da7dc1cdb7c43762be4bee.png)
(3)【拓展延伸】如图③,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080ca48cd27d4bf9d9ef084b558fc17a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b173ac8cc4ac4f1c9e1daaa605fbb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
您最近一年使用:0次
2024-04-05更新
|
654次组卷
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22卷引用:2023年四川省绵阳市涪城区中考模拟预测九年级数学模拟预测题
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8 . 如图,在平面直角坐标系中,直线
交
轴于点
,交
轴于点
,点
在直线
上,直线
经过点
和点
,
是直线
上一动点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/15/7fb1338d-120a-42f0-a1a7-ce378c618d58.png?resizew=314)
(1)求直线
的函数表达式;
(2)若
,求点
的坐标;
(3)若
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb6c62cb6c0c4bd23abb2bd93ed9dd0.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17e77fd5594344b1901d9da81fe26ce2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9521ea17a1a813d328ca8ec207126e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/15/7fb1338d-120a-42f0-a1a7-ce378c618d58.png?resizew=314)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbbdf7686f290a93a259f7fff44dbde8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5a2d1939b069abdf16ffe8f062e882.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
解题方法
9 . 如图1,在平面直角坐标系中.直线
与x轴、y轴相交于A、B两点,动点C在线段
上,将线段
绕着点C顺时针旋转90°得到
,此时点D恰好落在直线
上时,过点D作
轴于点E
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/4/1b0e9136-9d5e-4617-9045-5aa4c19e162e.jpg?resizew=607)
(1)求证:
;
(2)如图2,将
沿x轴正方向平移得
,当直线
经过点D时;求点D的坐标及
平移的距离
(3)若点P在y轴上,点Q在直线
上.是否存在以
为顶点的四边形是平行四边形?若存在,直接写出所有满足条件的Q点坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e434a6fc177990ab7f2b604c111e1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d84acd3c96e20c0ce064aac125f7fe2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/4/1b0e9136-9d5e-4617-9045-5aa4c19e162e.jpg?resizew=607)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a05008922a237075d2092a37969067.png)
(2)如图2,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982b323f23f42ef5f3f855471d467d35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a85c632e08ce1b355808bc7a9ad9a051.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
(3)若点P在y轴上,点Q在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1538604a2511974bf1d83cf27ed1271e.png)
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10 . 如图,已知
,
,
,试证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0782b64e9a9e02436620c9421b32d6c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c226581e14091779321c9fe91160ceef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494bf14f8369edcb5ba24413e91fd473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95cc39bd5f811ee710c8a9fb73d57791.png)
您最近一年使用:0次