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va rooog!!!!!!!va astept raspunsurile!!

Va Rooogva Astept Raspunsurile class=

Răspuns :

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