👤

Se considera functia f:R-R,f(x)=2x-3
a)Calculati f(1)+f(2)+f(3)+f(4)+f(5).


Răspuns :

F(1)=2*1-3=-1
f(2)=2*2-3=1
f(3)=2*3-3=3
f(4)=5
f(5)=7
-1+1+3+5+7=15