已知
,
,其中
,
.
(1)求
的值;
(2)在平面向量中的学习中我们知道,若向量
,则
,类比上述结论:在空间向量中,若向量
,则
,若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fdc96e68b4b3cef3e24f577059617b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9bf4be4dad22b4820f92e9544a86704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5481f424e3de353f5b53597bc4575bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe44477ab86824b68cb2ed2f03506951.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/628560d39eeb0339fa00c9c15ab2c095.png)
(2)在平面向量中的学习中我们知道,若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb05247d3288b720d2fb2d229c224145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecd43fef2164f434b20a6b3109f89929.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e356a31707d7880b8946e605ff654c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a98eb935a8488bf322fe66fb7232ae0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee3df12d1873787f67d8daaa1e51573f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6fbff85947f4df50ae1b17e967a158.png)
更新时间:2023-01-06 19:59:41
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