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Black Book Advanced Problems in MathematicsMathematicsLimits

If f is a positive function such that f(x + T) = f(x) (T > 0), , x R , then _ n n ( f(x + T) + 2f(x + 2T) + + nf(x + nT) f(x + T) + 4f(x + 4T) + + n^2f(x + n^2T) ) =

Options

  1. A2
  2. B2 3
  3. C3 2
  4. DNone of these

Correct answer

C. 3 2

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