Question

insira 4 meios geométricos entre 2 e 486 nessa ordem

Answer 1

a1 = 2
an = 486
k = 4
n = k+2
n = 6

an = a1*q^(n-1)
486 = 4*q^(6-1)
486/4 = q^5
243 = q^5
q^5 = 3^5
q = 3
meios = 6, 18, 54, 162
PG (2, 3, 18, 54, 162, 486)