如图,点
是正方形
内一点,已知:
,则
的面积的最小值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/13/e7d49714-bfc4-497d-a7c4-f710c77b7b74.png?resizew=142)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b58a3870e349c8031d6d0acdbcfc8f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/13/e7d49714-bfc4-497d-a7c4-f710c77b7b74.png?resizew=142)
A.1 | B.![]() | C.2 | D.![]() |
更新时间:2024-02-13 14:09:06
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【推荐1】如图,二次函数
图象的一部分与x轴的一个交点坐标为
,对称轴为直线
,结合图象给出下列结论:①
;②
;③关于x的一元二次方程
的两根分别为
和1;④若点
均在二次函数图象上,则
;⑤
(m为任意实数).期中正确的结论有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/5/45c8a0ab-6e2d-423e-a7a7-a60c0049ca5e.png?resizew=232)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ae2bdb471fa72711d959d70c6b5652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff32d26c8d44f5fb4813a19c1030a9f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e56f4504e0f80fd031c8b5f41832e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b176db026436b62f90e22c3b6f167bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d63d81f86facbfcfc2ba3a4979078c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099cb36ebe576883857783aa58ac5bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460c174c9fc5a4dd808c404ade05d360.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dd6330913f2ced22bcd3a7585a21030.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/5/45c8a0ab-6e2d-423e-a7a7-a60c0049ca5e.png?resizew=232)
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【推荐2】二次函数
的图象如图所示,有下列结论:①
;②当
时,
;③若
,且
,则
;④
.其中,正确结论的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/21/6420391d-6078-47bb-9270-78c32b4042cb.png?resizew=148)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8352b2e643a7ce605334f1b0e572bfb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c21bd0bd90a89b7ff5ac0eacf612a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060e7930731eddbcfac592b808e9b698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c024a97cff31cb54b6026300808798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4deee559d44a0d1c1016b2053539f2f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/419504736c4934f6e0df4114c3743944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da68ff94b0877adb96abbc3e0fa52d86.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/21/6420391d-6078-47bb-9270-78c32b4042cb.png?resizew=148)
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【推荐1】如图菱形ABCD的对角线AC=6,BD=8,点E为AB边的中点,点F、P为BC、AC边上的动点,则PE+PF的最小值为( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/3/38083493-3f1e-4147-8a9b-f9f40cff734b.png?resizew=171)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/3/38083493-3f1e-4147-8a9b-f9f40cff734b.png?resizew=171)
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【推荐2】如图,在平面直角坐标系中,已知
,
,以
为顶点,
为一边作
角,角的另一边交
轴于
(
在
上方),则
坐标为( )
![](https://img.xkw.com/dksih/QBM/2022/4/21/2963152199393280/2965133160677376/STEM/d0a14b20-0ab3-4fce-90bd-380706fb7096.png?resizew=167)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ea1f5bdd213c7c3a571b4c38850bf1.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/2022/4/21/2963152199393280/2965133160677376/STEM/d0a14b20-0ab3-4fce-90bd-380706fb7096.png?resizew=167)
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【推荐1】四座城市A,B,C,D分别位于一个边长100km的大正方形的四个顶点,由于各城市之间的商业往来日益频繁,于是政府决定修建公路网连接它们,根据实际,公路总长设计得越短越好,公开招标的信息发布后,一个又一个方案被提交上来,经过初审后,拟从下面四个方案中选定一个再进一步认证,其中符合要求的方案是( )
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【推荐2】如图所示,正方形ABCD的面积为12,△ABE是等边三角形,点E在正方形ABCD内,在对角线AC上有一点P,使PD+PE的和最小,则这个最小值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/5e42c116-c968-4855-b26d-410609f84d75.png?resizew=132)
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