如图,
为
的直径,
,点
为
上一动点,
交
于点
.如果以
,
,
为边作三角形,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3fd573103b569a83c39231a2df00405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf25e032b5599ac49383de06e776365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf702adb116c1e46569eb7050d029f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350e954f629c1901a5cec03558319e46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/4/0525547e-5916-4084-8bc1-87c80c742b64.png?resizew=153)
更新时间:2023-03-31 13:47:36
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【推荐1】二次函数的图象如图所示,给出四个结论:①abc>0;②4a﹣2b+c>0;③对于任意实数m,有
;④
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【推荐2】如图,已知抛物线与
轴交于
,
两点,顶点
在
轴上,则下列结论:①抛物线的解析式是
;②若函数值
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的取值范围是
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或
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,
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上一点,过点
作
轴的平行线交抛物线于点
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有最大值为1.其中正确的结论有______ (填写所有正确结论的序号).
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【推荐1】如图,
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中,
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,
是边
一个动点,将
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【推荐2】如图1,点
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,
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(1)在同一平面内分别将线段
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