向量
满足
,
.
(1)求
关于k的解析式
;
(2)请你分别探讨
⊥
和
∥
的可能性,若不可能,请说明理由,若可能,求出k的值;
(3)求
与
夹角的最大值.
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/92ad8411772a4c358b73add9e0968c3d.png)
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/fd2f93ad01bc4df29ee1edb81aa2cf6e.png)
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/e85d368d670949f8be014370c53d953f.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/ce7ba8de91304461ac54eeae53f57c9f.png)
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/e666fb5aabd3411cbdd8138490ccdfdd.png)
(2)请你分别探讨
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/0b62bec46a5445dcbca602bb978c94ba.png)
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/c7fa729ae47445079cc105eb33b52b25.png)
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/0b62bec46a5445dcbca602bb978c94ba.png)
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/c7fa729ae47445079cc105eb33b52b25.png)
(3)求
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/0b62bec46a5445dcbca602bb978c94ba.png)
![](https://img.xkw.com/dksih/QBM/2010/7/8/1569784650629120/1569784655912960/STEM/c7fa729ae47445079cc105eb33b52b25.png)
9-10高二下·广东深圳·期末 查看更多[2]
更新时间:2016-11-30 06:37:58
|
【知识点】 平面向量的数量积
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【推荐1】已知向量
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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【推荐2】在
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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【推荐3】已知向量
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(1)若
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(2)若
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