题目内容
对于函数
定义域中任意的
(
),有如下结论:
(1)
;(2)
;
(3)
;(4)
;试分别写出对应上述一个结论成立的四个函数:
适合结论(1) ;
适合结论(2) ;
适合结论(3) ;
适合结论(4) ;
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(1)
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(3)
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适合结论(1) ;
适合结论(2) ;
适合结论(3) ;
适合结论(4) ;
(1)
;(2)
;(3)
(4)
,
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中学阶段,满足条件⑴的只有正比例函数,满足⑵的只有对数函数,满足⑶的是增函数,满足⑷的函数的图像是上凸的.
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