EMC Q.2

0. The function f(x) = x3 - 6x2 + 9x + 25 has

  • Option : A
  • Explanation :

    f '(x) = 3(x2-4x+3)    f ''(x)=6(x)-12 at  x=1,  f "(1) at  x=3, f ''(3) = +ve

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