Question

calcule o sétimo termo da PG ( 1/8, 1/4, 1/2)

Answer 1

a1 = 1/8
q = 2
n = 7
an = a1.q^(n-1)
an = 1/8.2^(7-1)
an = (1/2)³ . 2^6
an = 2-³ . 2^6
an = 2³
an = 8 --> a7 = 8