Question

qual o sexagesimo termo da PA = {2,5,8...}

Answer 1

An=a1+(n-1).r
A60=2+(60-1).3
A60=2+59.3
A60=2+177
A60=179

Answer 2

a1=2
r=3

A60=a1+59r
A60=2+59. 3
A60=2+177
A60=179