Resposta :
Resposta:
[tex]q=2\sqrt{2}[/tex]
Explicação passo-a-passo:
[tex]a_8=a_5.q^5^-^3\\\\a_8=a_5.q^2\\\\40=5.q^2\\\\q^2=40:5\\\\q^2=8\\\\q=\sqrt{4.2}\\\\q=2\sqrt{2}[/tex]
Resposta:
[tex]q=2\sqrt{2}[/tex]
Explicação passo-a-passo:
[tex]a_8=a_5.q^5^-^3\\\\a_8=a_5.q^2\\\\40=5.q^2\\\\q^2=40:5\\\\q^2=8\\\\q=\sqrt{4.2}\\\\q=2\sqrt{2}[/tex]