LillyRules
contestada

A recursive rule for a geometric sequence is a1=4/9;an=3an−1. What is the explicit rule for this sequence?

Enter your answer in the box. an=

Respuesta :

Kalahira
a1=4/9
r=an/a(nâ’1)=3
an=a1r^(nâ’1)=(4/9)*(3)^nâ’1
the answer is (4/9)(3)^n-1

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