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a fost răspuns

f:R->R, f(x)= 2x+1.
Calculati f(1)+f(2)+...+f(10)

Răspuns :

f(1)=2×1+1=3
f(2)=2×2+1=5
f(3)=2×3+1=7
f(4)=2×4+1=9
f(5)=2×5+1=11
f(6)=2×6+1=13
f(7)=2×7+1=15
f(8)=2×8+1=17
f(9)=2×9+1=19
f(10)=2×10+1=21

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