Question

Doar exercitiul 13!!!!!

Answer 1

f(0)=3 ...esti la liceu, intelegi ca ratia este -2 , coeficientul lui x; daca nu, atunci calculezi "cinstit" si vei obtine:

f(1)=1

f(2)=-1

f(3) =-3

f(4)=-5

f(5)=-7

f(6)=-9

suma algebrica ceruta devine dupa reduceri =-5-7-9=-21

as 'babește" as that!!