Question

Numa pa finita, a1= 12 e r=5. Calcule a26

Answer 1

an=a1+(n-1).r
an=12+(26-1).5
an=12+25.5
an=12+125
an=137

Answer 2

An=a1+(n-1).r
a26=12+(26-1).5
a26=12+25.5
a26=12+125
a26=137