EMC Q.31

0. The function f(x) = x3 - 6x2 + 3x + 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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