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数学
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求函数f(x)=X3-3X+6X-6的单调区间
人气:446 ℃ 时间:2019-11-11 01:59:38
解答
y'=3x^2-6x+6=3(x^2-2x+2)=3[(x-1)^2+1]>0
y'>0 函数f(x)=X3-3X+6X-6在R上单调递增
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