Question

determine o 47 termos da PA (8,27,...)

Answer 1

$r = a_{2} - a_{1}$

r = 27 -8

r =19

$a_{n} = a_{1} + (n -1 ) *r$

$a_{47} = 8 + (47 -1) * 19 a_{47} = 8 + 874 a_{47} = 882$