在平行四边形
中,E是
的中点,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bece119cb5c778e784891eb374c97857.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d603f4459bf6dd90e28e5ae96c62f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bece119cb5c778e784891eb374c97857.png)
20-21高一下·浙江·期末 查看更多[4]
更新时间:2021-05-19 23:34:59
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填空题-双空题
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适中
(0.65)
解题方法
【推荐1】在边长为2的菱形
中,
,E是
的中点,F是边
上的一点,
交
于H.若F是
的中点,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
____________ ;若F在边
上(不含端点)运动,则
的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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填空题-单空题
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适中
(0.65)
名校
【推荐1】若
为正三角形且边长为2,平面内一点
满足
,则
=_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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您最近一年使用:0次
填空题-单空题
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适中
(0.65)
名校
解题方法
【推荐2】已知在
中:
,
,
,点
为
的垂心,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f74813cab029556249c5931b9c410fd.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐1】已知单位向量
与
的夹角是钝角,当
时,
的最小值为
,若
,其中
.则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1eeb629a6f94d187154b9e0fba4eb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987a2625dae99578e5c0e7b57d4a1c2f.png)
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【推荐2】在
中,已知
,若
的面积
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的值为_________ .
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ded3e0b889164efa4ec527d990c385.png)
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【推荐3】在梯形
中,
,
为
的平分线,且
,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee38ef0189000b6f1bee0a046ff4b091.png)
______ .
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