如下图,两块全等的等腰直角三角形拼在一起,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d53b0881a6fcc5338278185bddc8f8c8.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e029764e52a8ecf501b3d717a4f915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d53b0881a6fcc5338278185bddc8f8c8.png)
![](https://img.xkw.com/dksih/QBM/2011/3/25/1570064842997760/1570064848175104/STEM/4da37d62-c39d-404b-9f78-aabbd3fbd3a1.png?resizew=180)
10-11高三·浙江温州·阶段练习 查看更多[1]
(已下线)2011届浙江省温州中学高三月考数学文卷
更新时间:2016-11-30 16:08:01
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【推荐1】如图,在
中,D是
的中点,E在边
上,且
,若
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的值为___________ .
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【推荐2】正
的边长为1,中心为O,过O的动直线l与边AB,AC分别相交于点M,N,
,
.给出下列四个结论:
①
;
②若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f75a5bbeb0308c3428cc587c6e5b51b.png)
③
不是定值,与直线l的位置有关;
④
与
的面积之比的最小值为
.
其中所有正确结论的序号是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b5d70a0d31bf8f5cfbca5e88a23df80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b18bf5477ab809cf5b133a045b0ea8e9.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d5cce8256cbd50299a26044f05fc086.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9e07c611d39260a3160ef7380df0fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f75a5bbeb0308c3428cc587c6e5b51b.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587b693b82241eb9c32cdbb96c209f33.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d86ab7c97cd8a0b15ba5efc1be94230.png)
其中所有正确结论的序号是
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【推荐1】在平面直角坐标系中,向量
,
,正六边形
的顶点
位于坐标原点,
,若
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__________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0719844e0261af3b625d9673e5926.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/250b7379a3204bf93637bf9969342038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f4745bed62792dd95b1152e6d3c862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bec6c52cc4257a144d598b8c4c99ab.png)
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【推荐2】如图,在直角梯形
中,
,
为线段
(含端点)上一个动点,设
对于函数
,给出以下三个结论:
①当
时,函数
的值域为
;
②对于任意的
,均有
;
③对于任意的
,函数
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其中所有正确的结论序号为__________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/dc7f1a05-014c-4326-b206-b2fdb8b479e6.png?resizew=142)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
①当
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aadc68ed399afd6db385dae5e963c97a.png)
②对于任意的
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87cd4403487962c38c8707ba3ab3fa3.png)
③对于任意的
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其中所有正确的结论序号为
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【推荐1】已知梯形ABCD,
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【推荐2】设点
是
所在平面内动点,
不在
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(
,
),
,若
,则
的面积的最大值______ .
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