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Mathematics 13 Online
OpenStudy (anonymous):

i will medal and fan separate the intervals in which the function f defined on R by f(x) =x^3 -6x^2+9x +4, x in R, is increasing or decreasing . (2) show that the function f defined on R by f(x)=x^3-6x^2+9x+4, for all x in R is increasing in every interval

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