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Black Book Advanced Problems in MathematicsMathematicsApplication of Derivatives

Let f(x) = cases 2 - |x^2 + 5x + 6| & x -2 b^2 + 1 & x = -2 cases Has relative maximum at x = -2 , then complete set of values b can take is :

Options

  1. A|b| 1
  2. B|b| < 1
  3. Cb > 1
  4. Db < 1

Correct answer

A. |b| 1

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