已知
是腰长为4的等腰直角三角形,
,
为平面
内一点,则
的最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5599e9781b55e130054916224f24777.png)
A.![]() | B.![]() | C.0 | D.![]() |
更新时间:2020-03-04 20:47:31
|
相似题推荐
单选题
|
适中
(0.65)
名校
解题方法
【推荐1】在
中,
,
,
,D是
内一点,且
设
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4cb73e9d976cbfe9c590044fa69dd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a0fe0d9b03915ab3dbc84cc9610bfab.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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适中
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解题方法
【推荐2】已知P为边长为2的正方形ABCD所在平面内一点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49163e9dc6878910a10d2b4aa1ddad93.png)
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49163e9dc6878910a10d2b4aa1ddad93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbbeab945bebc205306d6f49d354c33.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐3】正方形
的边长为
,
是正方形内部(不包括正方形的边)一点,
,则
的最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/298bb6cefe7ce2bcf77a266fb7b3635a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f96e45aed54b22df195202d81ee58f05.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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(0.65)
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【推荐1】已知圆
的半径是
,点
是圆
内部一点(不包括边界),点
是圆
圆周上一点,且
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d13b5d085f16d092fe8712a038864a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63c98b9a6fc2c9815073a3a773a87a2d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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适中
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【推荐2】已知平面向量
满足
,
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96022a881e03e32d3483d997c3f170c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b47c50b15ddaa770860eb26b162f931c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7202ed4b3782505884ec2c09548cf2b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/738e5516b4a081bc96d78b21be4a410e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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