如图,四边形
和四边形
都是平行四边形.
相等的向量;
(2)写出与向量
共线的向量.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3a079cfdcca9acdacecbf08f9f78cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2469649ca6bae74d88fab57a3c5bcd.png)
(2)写出与向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2469649ca6bae74d88fab57a3c5bcd.png)
20-21高一下·全国·课后作业 查看更多[6]
2.1从位移、速度、力到向量同步练习2020-2021学年高一下学期数学北师版(2019)必修第二册(已下线)专题01 平面向量的概念(四大考点)-【寒假自学课】(人教A版2019)(已下线)第01讲 平面向量的概念-《知识解读·题型专练》(人教A版2019必修第二册)(已下线)2.1 从位移、速度、力到向量-同步精品课堂(北师大版2019必修第二册)(已下线)2.1 从位移、速度、力到向量4种常见考法归类-【帮课堂】(北师大版2019必修第二册)(已下线)6.1 平面向量的概念——课后作业(提升版)
更新时间:2023-04-13 07:29:20
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【推荐1】如图ABCD是菱形,则在向量
、
、
、
、
和
中,相等的有哪些?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
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名校
【推荐2】已知
,
.
(1)若
,求
的值;
(2)设
,若
,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f2b2b9333c670eb676ee9918cffb80f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa948cb66784cd5839721537ae85542.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb58883caf5c8ca1e94389839d294b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d887fe42756114f40e52ade07451c7d3.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11dfcd0a9fde14292263ef24cf75d167.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63567979c96ad1e4ceb39b6ad22bd6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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【推荐2】判断下列命题是否正确,并说明理由.
①若向量
与
同向,且|
|>|
|,则
>
;
②若向量
,则
与
的长度相等且方向相同或相反;
③对于任意|
|=|
|,且
与
的方向相同,则
=
;
④向量
与向量
平行,则向量
与
方向相同或相反.
①若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
②若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4e5897cc6378c993ae77e93c91e444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
③对于任意|
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
④向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
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