Resposta:
Explicação passo a passo:
[tex]1. \\q = \frac{3}{8} : \frac{3}{16} \\q = \frac{3}{8} . \frac{16}{13} \\q = \frac{48}{24} = 2\\a{n} = a{1} . q^{n-1} \\a{8} = \frac{3}{16} . 2^{8-1} \\a{8} = \frac{3}{16} . 2^{7}\\a{8} = \frac{3}{16} . 128\\a{8} = \frac{384}{16}\\a{8} = 24\\\\[/tex]
2.
an = a1 . q^{n-1}
a19 = a16 . q^(19-16)
235= 5 . q³
q³ = 135/5
q³ = 27
q = ∛27
q = 3
3.
q = 95/960 : 5
q = 19/192
