nlama5825 nlama5825

18-06-2022
Mathematics

contestada

(b) If f(x + 7) = f(x) + f(7), x = R, prove that : (ii) f(7) = -f(7)

Respuesta :

Medunno13 Medunno13

18-06-2022

If x=-7, then f(0)=f(-7)+f(7).

So, subtracting f(-7) from both sides, we get that f(7)=-f(-7).

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