已知向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2765fb7403764984254cb84282bba51e.png)
(1)求
的坐标以及
与
之间的夹角;
(2)当
为何值时,
与
垂直?
(3)当
时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2765fb7403764984254cb84282bba51e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1c1dd6b13d92f2cc2eef097e14c07c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1c1dd6b13d92f2cc2eef097e14c07c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb1c1520a4e2174415a034a5dc11df1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70925d3d8fabb8cd9320576df54cd055.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb735ff555cd2b35737d371baf35a0c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f488c19579ceda5e4187b3fa5099c29.png)
更新时间:2020-12-22 19:29:49
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
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