Question

if f(x+5)=f(x)+f(7), then show that f(2)=0 and f(7)=-f(-3)

Answer 1

Step-by-step explanation:

f(x+5)=f(x)+f(7)

f(2+5)=f(2)+f(7)

f(7)=f(2)+f(7)

f(7)-f(7)=f(2)

f(2)=0

Answer 2

Answer:

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