Question

Qual o 10° termo da P.G (729,243,81,...)?

Answer 1

Resolucao!

q = a2 / a1

q = 243 / 729

q = 1 / 3

an = a1 * q^n - 1

an = 729 * (1/3)^10 - 1

an = 729 * (1/3)^9

an = 729 * 1/19683

an = 729 / 19683

an = 1 / 27

Espero Ter Ajudado