如图,在
中,
,E是BD上的一点,若
,则实数m的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8488ec91652ad560475f6d45c8e20b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1625aa7844ef682b7109ef5cca7f8a.png)
![](https://img.xkw.com/dksih/QBM/2021/11/29/2861614629363712/2869456555130880/STEM/b16bd0d2ff774d42874965de9846be40.png?resizew=155)
21-22高三上·天津西青·阶段练习 查看更多[2]
更新时间:2021-12-10 12:27:13
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解题方法
【推荐1】如图:在等腰直角三角形
中,
点
为边
上靠近
点的四等分点,过点
作边
的垂线
,设点
为垂线
上任意一点,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a72f967027ad688f5563a210b2022c1.png)
___________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4819c39c281427826e1b3f7a4c2b720.png)
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【推荐2】如图,在等腰三角形
中,已知
,
,
分别是边
上的点,且
,其中
且
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的中点分别为
,则
的最小值是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe07603e5ec70c15bdccd29ccaae7fe1.png)
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解题方法
【推荐1】如图,在
中,
是
的中点,点N在边
上,且
,
与
相交于点
,设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ce0da153621bbd05519f168b527e3e.png)
_________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eb4713985fd15713e52c5001059345c.png)
_________ .(注:用
和
来表示)
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【推荐1】如图,在
中,
是线段
上的点,且
,
是线段
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交
于
点,设
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__________ ;若
为边长等于2的正三角形,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b099a0cfbb1f13a91277540bf004c66a.png)
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【推荐2】如图,已知平行四边形
的对角线相交于点
,过点
的直线与
,
所在直线分别交于点M,N,满足
,
,(
,
),若
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的值为_________ .
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