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f(x)=2x+1 aflati f(0) + f(1)

Răspuns :

f(0)=2*0+1 = 1
f(1)=2*1+1 = 3
=> f(0) + f(1) = 4
f(0)=1
f(1)=2+1
f(0)+f(1)=4