若
,
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ebcfd47ce43b1faea832fc0a28b5e37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360c6b5f2ca5317e555e72ee2e6c51ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33efa5310fe10ca24ea6d6cf24f40f4c.png)
(Ⅰ)用表示数量积
;
(Ⅱ)求的最小值.
更新时间:2017-07-19 20:29:03
|
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解答题-问答题
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较难
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解题方法
【推荐1】已知F为抛物线
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(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)如图,设点A,B,C都在抛物线T上,若
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较难
(0.4)
解题方法
【推荐2】如图,数轴
的交点为
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与
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名校
【推荐1】已知A,B,C为
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较难
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