Question

Fie functia f:{-2:-1:1:2} apartine lui z f(x)=-2x+1 Daca a=f(-2)+f(1)+f(2). atunci a ete egal cu...

Answer 1

F(-2)= -2*(-2) +1=4+1=5
F(1)=-2*1+1=-2+1=-1
F(2)=-2*2+1=-4+1=-3
=>a=5+(-1)+(-3)= 5-1-3=1