Question

quantos termos possui a PG onde A1 = 6, na= 728 e q = 2?

Answer 1

q^n-1 = an/a1 ===> an=768 (correto,)

2^n-1 = 768/6

2^n-1 = 128

2^n-1 = 2⁷

n-1 =7

n=8 termos