零向量可以有很多方向,但却只有一个长度,就像我,可以有很多朋友,但却只有你一个值得守护!已知
,
,若
,则
与
的夹角为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deae5171eb718a10261d9b632aa7c2ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5198bffaa8d4504da459606cb9d27bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bcb140aa73fbe827043dca511ea1335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccf5d6665fdc97227d3abee58a004e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f72b662a36c7f789a16052cb918241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deae5171eb718a10261d9b632aa7c2ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bcb140aa73fbe827043dca511ea1335.png)
更新时间:2018-08-01 13:51:07
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相似题推荐
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适中
(0.65)
【推荐1】
,
,
,
的夹角为
,则
与
的夹角为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7f14dfa9f463d57664c640102bb5b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eca8fb20438505791369da9abe4a804.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
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填空题-单空题
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适中
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【推荐2】已知等腰直角三角形
的斜边为
,则向量
与
夹角的大小为_______ .
![](https://img.xkw.com/dksih/QBM/2016/7/4/1572876590702592/1572876596797440/STEM/14c93a9fe71a47cca8726b65b45f93d5.png?resizew=45)
![](https://img.xkw.com/dksih/QBM/2016/7/4/1572876590702592/1572876596797440/STEM/9cd249f6abd24561821e9a74d777feb6.png?resizew=27)
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您最近一年使用:0次
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【推荐3】定义:
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两个向量的叉乘
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______ .
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