解题方法
1 . 在四边形
中,对角线
与
交于点
,若
,则四边形
一定是( )
![](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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24eda22a30fc9649f5325c434c999796.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.矩形 | B.梯形 | C.平行四边形 | D.菱形 |
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7日内更新
|
202次组卷
|
2卷引用:温州人文高级中学2023-2024学年高一年级下学期5月月考数学试题
名校
2 . 设关于
的方程
的两根为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)若
,求
的值;
(2)若方程至少有一根的模为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2914555b73c954e85aa05449d767eee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a39b9354d936ff25d65386d56671d56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若方程至少有一根的模为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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3 . 若方程
的两个根分别是2,3,则方程
的根分别为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f43e49552a5099a8b2a442247c65a243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/567a447426add368efd0199c1bab8ab6.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2024-05-28更新
|
31次组卷
|
2卷引用:河北省辛集市第三中学2023-2024学年高一上学期10月月考数学试题
4 . 四边形ABCD内接于⊙O,
,对角线AC、BD相交于E点.
.
①求证:
∽
;
②求
的值.
(2)如图2,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b38cb02ffb6d8ff5b8cf64370aa8635f.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0005e1ef60f6ddc5f9a83e3de1ef3b2e.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3f7c1fd715395858fef59913b8d9262.png)
(2)如图2,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b179029a5e4b5ab5210f522544e49d.png)
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5 . 如图,在平行四边形ABCD中,E、F两点分别在BC、CD边上,
,连接AF AE,分别交BD于P,Q两点.
;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f22f3143a34f1f78bc5ef35c24d4beb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e7b2810ac6e01c245cb5658293957b8.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44df00a25c006670e03836aebae93bf6.png)
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6 . 已知一次函数
与反比例函数
的图象相交于
两点.
(1)当
时,比较
与
的大小;
(2)在
轴上找一点
,使得
的周长最小,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715416015a9634f5eafe3d399987d837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0234bc3bc76deffa1ee8c961b9eca2e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60fc82aa4e1c146e7e08883e83558d96.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
(2)在
![](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/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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7 . 如图,在正方形
和正方形
中,
,
,将正方形
绕点
旋转,连接
,当
最大时,则
的长为 _______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d0e8404f347a0eb4c76f4d25d9bdac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070bc896d35495237fd65576e9b6f88e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d0e8404f347a0eb4c76f4d25d9bdac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5af342d3b871ace448ccc7c648528288.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
您最近一年使用:0次
8 . 在新冠疫情阻击战中,我国有400万名社区工作者默默无闻地奋战在几十万个社区.将400万用科学记数法表示为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 因式分解![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bde050eac4dbc41adeb18db5d879d52.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bde050eac4dbc41adeb18db5d879d52.png)
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10 . 关于
的一次函数
为常数,且
.
(1)若其图象经过
两点,且
,试判断该函数图象所经过的象限;
(2)若
,对于任意实数
,其图象都经过定点
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a26db9a7b3c8ea565453027940470fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103b6ff65be79b98e05c368ddcae533c.png)
(1)若其图象经过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd9d894bb9f759e6d403bc6de9a89a93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e34f42b3be15518c29e3689c9fe6d6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79be0cca87f01506228c02990d0c3a8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次