Question

o termo geral de PA (2, 7,...) e definido por:

A) an = sn-3
B) an = 3-5n
C) an = 3n-5
D) an = 5+3n
E) an = 1+3n

Answer 1

an= a1+(n-1).r
an=2+(n-1). 5
an=2+5n-5
an=-3+5n
an= 3-5n