Question

Interpol quatro meios geométricos entre 2 e 486

Answer 1

$a_n = a_1.q^{n-1} \\ 486 = 2.q^{6-1} \\ \\ q^5 = \frac{486}{2} \\ \\ q^5 = 243 \\ q = \sqrt[5]{243} \\ q = 3$

P.G {2; 6; 18; 54; 162; 486}