Question

Quantos termos possui a P.G onde A1=6 , An = 384 e q = 2 ?

Answer 1

$a_n=a_1\times q^{n-1}$
$384=6\times2^{n-1}$
$64=2^{n-1}$
$2^6=2^{n-1}$
$6=n-1$
$\boxed{n=7}$