求导数题目.f(x)=2x^3+2x²-12x+2在区间[-5,4]上的单调区间'极值与最值.f '(x)=6x²+6x-12=6(x+2)(x-1) x1=-2,x2=1定义区间分为[-5,-2] [-2,1],[1,4]跟着我求出每个单调区间的最值和极值.22,-5 最值.130,-113.但

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