在平面直角坐标系中,O为坐标原点,已知向量
,点
.
(1)若
,求
的最小值;
(2)若向量
与向量
共线,常数
,求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dc6a1952b96a584fb15c43acb6d7259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c96089155773dfa6f9974535417d1a87.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4eb73387ca01985d6df8fdb2c37bbf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dabeab6c433c71081c1acdb70c77ad6.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be64d59ac6538a0f4d79fb825e082081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05fe75b62e4b68f7aeca1a4bcd6fbb64.png)
更新时间:2021-03-23 15:11:08
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9b5461476d043275dc4a7683166a3f5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30884f6bcf33868f0e4ff543f0b8c48d.png)
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(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e7b2150ed88d3ffdec3d142617eacf.png)
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(3)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c0c9e206699cfc73bb2ded30f22de0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d20f23e644723ba0f71aa0cd0af094.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be64d59ac6538a0f4d79fb825e082081.png)
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