12-13高一下·山西·期中
名校
1 . 设
、
、
是非零向量,则下列说法中正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/524594bf0942ed86f56fc1eee120a81a.png)
A.![]() | B.![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次
2016-12-02更新
|
1297次组卷
|
5卷引用:2012-2013学年山西省山大附中高一下学期期中考试数学试卷
(已下线)2012-2013学年山西省山大附中高一下学期期中考试数学试卷2015-2016学年山西大学附属中学高一下期中数学试卷江西省南昌市第二中学2020-2021学年高二上学期开学考试数学试题(已下线)8.1.1 向量数量积的概念-2020-2021学年高一数学课时同步练(人教B版2019必修第三册)(已下线)专题6.2 平面向量的数量积(A卷基础篇)-2020-2021学年高一数学必修第二册同步单元AB卷(新教材人教A版,浙江专用)
13-14高三上·重庆·阶段练习
2 . 下列命题中,真命题的个数为( )
(1)在
中,若
,则
;
(2)已知
,
,则
在
上的投影
;
(3)已知
:
,
,
:
,
,则“
”为假命题;
(4)已知函数
(
)的导函数的最大值为3,则
的图
象关于
对称.
(1)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca51be437b1a97ca92aa1159ab71102c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dc38d888741a1b2e95fe0773a48c38.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2a1711513b0b1e8599c99505d45558c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b9d31aea7bb335942f2c7da27a2f370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ed9c2e9fabbfc63733bae8fa079d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ccd7af9298cd5ff19d8866fedb42ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d11d6d0ff7e23315ab385370425696f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e20282b44b9a81a094e73325a1e0583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97842fd0ea2ea493566e5b4e363daa5e.png)
(4)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26355b576b4bd835bafbb52b99df6c47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
象关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f56a20bc5fce6b02217627b42249854.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
11-12高一下·山西·期中
解题方法
3 . 已知
,
在
方向上的射影为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd01707e8d32f277b83c007a5b15bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6316d995f00623f05fc3d56a6cbe5f00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd01707e8d32f277b83c007a5b15bd7.png)
A.3 | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
12-13高三上·四川泸州·阶段练习
4 . 设
,则
在
方向上的投影为
![](https://img.xkw.com/dksih/QBM/2012/2/26/1570774191767552/1570774196969472/STEM/024f85c36e2848b4b040ab8b1f859e74.png)
![](https://img.xkw.com/dksih/QBM/2012/2/26/1570774191767552/1570774196969472/STEM/9364aee15081454da882e51bf0eac16c.png)
![](https://img.xkw.com/dksih/QBM/2012/2/26/1570774191767552/1570774196969472/STEM/92bd20f975f04d798e41f069485dccf2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
11-12高二·上海·期末
5 . 已知|
|=
,
,
与
的夹角为
,则
在
上的投影为_____________.
![](https://img.xkw.com/dksih/QBM/2012/1/27/1570700344737792/1570700349857792/STEM/2297b3d4bd674a4198623c5100e9a28d.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2012/1/27/1570700344737792/1570700349857792/STEM/d5898164390b401da6c012ce9d2b03f1.png?resizew=13)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34fa8ea29001bb1f0c1e5157aff2fca5.png)
![](https://img.xkw.com/dksih/QBM/2012/1/27/1570700344737792/1570700349857792/STEM/2297b3d4bd674a4198623c5100e9a28d.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2012/1/27/1570700344737792/1570700349857792/STEM/da2b128f9a2241c59a3829dedab3c6e3.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2012/1/27/1570700344737792/1570700349857792/STEM/2f47a52d7bce4c1c96e9ab16f7a107db.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2012/1/27/1570700344737792/1570700349857792/STEM/da2b128f9a2241c59a3829dedab3c6e3.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2012/1/27/1570700344737792/1570700349857792/STEM/2297b3d4bd674a4198623c5100e9a28d.png?resizew=13)
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10-11高一下·福建·期末
6 . 已知向量
=(2,3),
,那么
在
上的投影为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b8583acf0b89997429dbbaa837c3fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
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