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极值点偏移四
2018-03-13 | 阅:  转:  |  分享 
  

[来源:学科网]
令sx?1?x?2lnx,易知sx在0,??递减,s10?,
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01??x,sx?0,hx?,x?1,sx?0,hx?,??hxh1,
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x?1,hx?0,x?0,hx???,[来源:Zxxk.Com]
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要合题意,如图,01??a,10??a,右大于左,原题得证





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