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Black Book Advanced Problems in MathematicsMathematicsFunctions

f(x) is an even periodic function with period 10. In [0, 5], f(x) = cases 2x & 0 x < 2 3x^2 - 8 & 2 x < 4 10x & 4 x 5 cases . Then :

Options

  1. Af(-4) = 40
  2. Bf(-13) - f(11) f(13) + f(-11) = 17 21
  3. Cf(5) is not defined
  4. DRange of f(x) is [0, 50]

Correct answer

A. f(-4) = 40

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