设函数y=x^3-4x^2-3x,求该函数的单调区间和极值,
人气:306 ℃ 时间:2019-08-18 10:32:34
解答
y'=3x^2-8x-3
=(3x+1)(x-3)=0
当x<-1/3或x>3时,y有单调递增区间
当-1/3
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