(1)已知x>0,y>0,x+y+xy=8,则x+y的最小值?
(2)已知不等式
的解集为{x|a≤x<b},点(a,b)在直线mx+ny+1=0上,其中m,n>0,若对任意满足条件的m,n,恒有
成立,则λ的取值范围?
(2)已知不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a103aebff8b60dc5db1f136d1dee927.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d80eec2db8694fbbf818ca6b886597.png)
更新时间:2019-01-04 21:46:29
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【推荐1】已知
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【推荐2】已知定点
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为
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在
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(1)求
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(1)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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【推荐1】若不等式
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解题方法
【推荐2】某地拟建造一座大型体育馆,其设计方案侧面的外轮廓如图所示,曲线
是以点
为圆心的圆的一部分,其中
;曲线
是抛物线
的一部分;
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的半径.假定拟建体育馆的高
(单位:米,下同).
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(1)若
,
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和
的长;
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米,求
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(1)若
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