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Sagot :

bonjour

f(x + y) = f(x)*f(y)

f(1) = 1/2

          • f(1) = 1/2

            f(0 + 1) = 1/2

            f(0) * f(1) = 1/2

            f(0) * 1/2 = 1/2

            f(0) = 1

             • f(2) = f(1 + 1) = f(1) * f(1) = 1/2 * 1/2 = 1/4

  f(0) + f(1) + f(2) = 1/2 + 1 + 1/4 = 7/4

réponse : 7/4

           

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