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Black Book Advanced Problems in MathematicsMathematicsApplication of Derivatives

A function f:R R is given by f(x) = cases x^4 ( 2 + 1 x ) & x 0 0 & x = 0 cases , then

Options

  1. Af has a continuous derivative x R
  2. Bf is a bounded function
  3. Cf has an global minimum at x = 0
  4. Df'' is continuous x R

Correct answer

A. f has a continuous derivative x R

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