Mathematics

Mathematics

Problem

Let f(x)=x3−3x2f(x)=x^{3}-3x^{2}. Which interval describes where the graph of ff is concave up? a) (−∞,1)(-\infty,1) b) (1,∞)(1,\infty) c) (0,∞)(0,\infty) d) (2,∞)(2,\infty)

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