Question

f (a + b) = f (a) × (b) para quaisquer a e b . sabendo que f(3) = 2. calcular o valir da soma f(0) + f(-3)

Answer 1

Olá 

f(a + b) = f(a) * f(b)

f(6) = f(3 + 3) = f(3)*f(3) = 2*2 = 4 

f(3) = f(6 - 3) = f(6)*f(-3) 

2 = 4*f(-3) 

f(-3) = 2/4 = 1/2 

f(0) = f(3 - 3) = f(3)*f(-3) = 2*1/2 = 1

f(0) + f(-3) = 1 + 1/2 = 3/2 

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