解题方法
1 . 在△ABC中,点D为线段BC的中点,点E满足
,若
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8eeca31b6ec56f02c3ca7969e098aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f733282601cb9ded3aa4cee47b1f335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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今日更新
|
10次组卷
|
2卷引用:陕西省铜川市王益中学2024届高三下学期高考猜题信息卷(二)文科数学试题
解题方法
2 . 已知
是平面上一定点,
是平面上不共线的三个点,且
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0ad254e88d57298a7b4f932ec7d613f.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdcb25ce107eb4b1b76c01accdb0d97b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6c7a54285a5a3d8c9a3b2d5dd62c141.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0ad254e88d57298a7b4f932ec7d613f.png)
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3 . 如图,在平面四边形ABCD中,下列结论一定正确的是( )
A.![]() |
B.![]() |
C.![]() |
D.若![]() |
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解题方法
4 . 在
中,
,
是
上一点,
是
的平分线,且
,则
的面积为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba17ca6e99a76917acf9ada3fc348ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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5 . 如图,在矩形
中,若
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4bbfc2509cd82f1d81b600963040abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8337706c550bc095d7a2bd872221a1.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
6 . 在
中,
是
边上靠近点
的三等分点,
是
的中点,若
,则
( )
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b3637e8688dc6fd80b807b21c2a9a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
A.0 | B.![]() | C.![]() | D.1 |
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7 . 已知
的外接圆圆心为O,且
,则
在
上的投影向量为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4670e55d957e8875e191e3175db10d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083a20abb668d4c26fe5039bd108b40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7日内更新
|
190次组卷
|
2卷引用:广东省广州市白云区2023-2024学年高一下学期期末数学试题
8 . 在
中,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6fb9a0ea0b6d0545022dad953602389.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/658ff9921ff96972b0fc95360bb0c65b.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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7日内更新
|
254次组卷
|
2卷引用:广东省广州市白云区2023-2024学年高一下学期期末数学试题
名校
解题方法
9 . 如图是《易・系辞上》记载的“洛书”,其历来被认为是河洛文化的滥觞,是华夏文明的源头.洛书中9个数字的排列可抽象为两正方形
,
,其中
为这两正方形的中心,
,
分别为
的中点,若正方形
的边长为2,则下列结论不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa67bd9c7e7d07b7c0689cb553ae5ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4ed2e6490abf519cf95cc1c4cb5ed60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
10 . 若平面内三点O,M,N满足
,
,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/217d8c865af8ecfabd2d0e8c7a499192.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78778c3e8e56816e19a1498deae4fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d761354d5a07646ebb6841dfd0e64af6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e98d3110158f9503382e4e71a4eb284.png)
A.2 | B.1 | C.![]() | D.![]() |
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