如图,直角梯形
中,
,
,若
为
三条边上的一个动点,且
,则下列结论中正确的是______ .(把正确结论的序号都填上)
的点
有且只有1个;
②满足
的点
有且只有2个;
③能使
取最大值的点
有且只有2个;
④能使
取最大值的点
有无数个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d47ad7ef0a17747fc54fe058bcb8d1a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a116da076a45a9fe579bfbdfcbe299.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8493a0cd10d3d0399173c04163740a38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
②满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f371d431b6c91972b742c426c8a81ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
③能使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
④能使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55db12bc9a3b7bd2e6decaaea6ba387e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
23-24高一下·北京·期中 查看更多[2]
更新时间:2024-05-02 13:05:46
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较难
(0.4)
解题方法
【推荐2】如图,直角梯形
中,
,若
为
三条边上的一个动点,且
,则下列结论中正确的是__________ .(把正确结论的序号都填上)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/8725bac3-b1ad-493e-9e5a-d8c344ccf419.png?resizew=149)
①满足
的点
有且只有1个;
②满足
的点
有且只有1个;
③能使
取最大值的点
有且只有1个;
④能使
取最大值的点
有无数个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e13df0a410fe807ccb8f29d89efa3ad.png)
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①满足
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②满足
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