名校
解题方法
1 . 已知矩形
的对角线交于点O,E为AO的中点,若
(
,
为实数),则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ba78732ec7786cde2ec403a1b381c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c176cbc7efdbbbebe0e78cfc7cc35f83.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-11-14更新
|
589次组卷
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5卷引用:内蒙古阿拉善盟2023届高三第一次模拟考试数学(理)试题
名校
2 . 下列命题中正确的个数是 ( )
(1)若
为单位向量,且
,则
; (2)若
且
,则
;
(3)
; (4)若平面内有四点A、B、C、D,则必有
.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3cc805723d3ecc95b4472d13bb1bb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62b844e58e1117d7e2723064743fbdf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa66bc88b1c5b687060e72df514163b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3854a1870df3dfab871bb1b15d41cb07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb59608b11580b3da06aa11e0c26e1f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca0ed4d765007d0957fd85377f2cc43.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb2809ece36ba157eb4ab48f9c1e6dca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eb1bf1ce169f7fa42bdac87a88e4328.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
2018-08-13更新
|
2393次组卷
|
2卷引用:内蒙古平煤高级中学2017-2018学年高一下学期第二章单元检测数学试题