在
中,点F为线段BC上任一点(不含端点),若
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/906b86ba6a3a5aa194d5cdc97c6b2d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd31dc2d0967db352574381d66d33fc0.png)
A.3 | B.4 | C.8 | D.9 |
更新时间:2024-06-08 19:55:56
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相似题推荐
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【推荐1】在
中,点
在边
的延长线上,且
.若
,则点
在( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b698b474298e6965e15bfea6b7db55e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b771f8339d3a3ea331a59b92c682e289.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.线段![]() | B.线段![]() |
C.线段![]() | D.线段![]() |
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【推荐2】在
中,
为线段
的一个三等分点,
.连接
,在线段
上任取一点
,连接
,若
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc686fd85d7d8b6aa435a5bdded6d810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e16be59226d6815f5ebb41f9250b96b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
【推荐1】△
中,点
为
上的点,且
,若
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/647803d5580626bbef1b574317c8ded3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64cdfa1344b580d860e6192465953b49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d285e611381e448100f126c4d7a9b78.png)
A.1 | B.![]() | C.![]() | D.![]() |
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解题方法
【推荐2】向量
,
,
在正方形网格中的位置如图所示,若向量
,则
的值等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1abdc197cab50e9b59fd74467aaf8ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/11/f4e16dbf-c932-48ed-bc78-5a4df67221c4.png?resizew=158)
A.1 | B.![]() | C.3 | D.![]() |
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【推荐1】正实数
满足
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2660b3f6408551fc0a6214acdbd92713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43bf5bd776595caa2641b948160be38e.png)
A.![]() | B.1 | C.2 | D.![]() |
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解题方法
【推荐2】若正数
满足
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4518d0d1c6bea9b2e62a15709846523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ee29ca15fba67a20f9963ed9b66ca7.png)
A.2 | B.3 | C.4 | D.5 |
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