Question

Se coinsidera functia f:R->R, f(x)=x+1
a) Calculati f(0) + f(-1)

Answer 1

f(x)=x+1;
f(0)=1;
f(-1)=0;
f(0)+f(-1)=1+0=1.

Answer 2

f(0)=0+1= 1  ; f(-1)= -1+1=0

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

*   -1+1(se reduc,deaorece au semnele opuse)