1 . 正方体
中的有向线段,不能作为空间中的基底的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知向量
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324a130c5642d10b868d5320a8b0f375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27f5e7e6301b0718e5cb53a0ba1de6cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
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3 . 若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1afc265b64c799049f63a66f5ca76382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/298a69ac08242d7d341d8afc8d2efe4d.png)
A.![]() | B.![]() | C.8 | D.10 |
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2024高三·全国·专题练习
解题方法
4 . 已知在正四棱柱
中,
,
,E为
的中点,F为
的中点.求证:
(1)
且
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8395ad704eb0d1e66f7c2e1558de34ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1025ae64ab3bbc38c0a9adbb8ef73e13.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db68c2e813588fdb7357757199992350.png)
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名校
5 . 设平面内不共线的三点A,B,C以及平面外一点P,若平面
内存在一点D满足
,则x的值为( )
A.0 | B.![]() | C.![]() | D.![]() |
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2024-01-30更新
|
235次组卷
|
2卷引用:浙江省杭州第二中学2023-2024学年高二上学期期末考试数学试题
6 . 在空间直角坐标系
中,已知点
,若向量
,则点B的坐标是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e336d6ca2cae3d6e6c3810d7e521a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55e337bf21d049c9e1f4a10f1706342c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a16bfc92e159b4a78c892cc62ffd66.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-01-29更新
|
149次组卷
|
2卷引用:北京市顺义区2023-2024学年高二上学期期末质量检测数学试题
7 . 已知两个向量
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc10e52fd9d0f82601d09d208524c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acef6e45e16d4273569b2d997f08f4f7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
8 . 向量
,
,若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4673a2fb87cdf3ad2d9ca2122c25f1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5992417596841640f21959eba7ca5e6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076559f08d17fb25e82886e791719e52.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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9 . 已知
,若
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/547584c94fb42eab8b836d970788a1c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b958a367fa2f08b6202a5a6ebf5e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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10 . 已知点
是点
在坐标平面
内的射影,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83f5a43162f9c7d0ac41e2e32b4d2492.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ae81454d78e6d0258c04d72640bd72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a9e1eb4c3226489d1344321b10b7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83f5a43162f9c7d0ac41e2e32b4d2492.png)
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