如图,
中,
为线段
上一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/268b953c-4fa4-4093-bd16-77a9548c9b12.png?resizew=176)
(1)若
为
中点,求
的取值范围;
(2)若
平分
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3251c60f6e8d2f85d0bc8521d147a6d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/268b953c-4fa4-4093-bd16-77a9548c9b12.png?resizew=176)
(1)若
![](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/03902478df1a55bc99703210bccab910.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
更新时间:2021-03-24 17:48:22
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图所示,半圆
的直径为
,点
为直径延长线上的一点,
,点
为半圆上任意一点,以
为边向半圆外作等边三角形
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/8905c308-a1ec-4d11-a697-152ecd4c2f75.png?resizew=275)
(1)求四边形
的面积的最大值;
(2)求线段
长的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9774f83067ed956a551bc41adcce0469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/8905c308-a1ec-4d11-a697-152ecd4c2f75.png?resizew=275)
(1)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ea16ceca816f7d3d50650af141baf42.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】如图所示,在平面四边形
中,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2020/7/13/2505227887058944/2506688825278464/STEM/125a5611cc51457a90b82feff3b0545c.png?resizew=168)
(1)求
的大小;
(2)若
,求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a1721a436858a999093da04bc17bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1a572636ed4d26d323092ff0fc06f42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e46571701ccaa18d3c844ab99ee6c30e.png)
![](https://img.xkw.com/dksih/QBM/2020/7/13/2505227887058944/2506688825278464/STEM/125a5611cc51457a90b82feff3b0545c.png?resizew=168)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868ff1350bd72625328c85c3097cd85e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921a71040d18df8b33bc41995675a586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次