s4sc9LexisTaylorFa s4sc9LexisTaylorFa

28-12-2016
Mathematics

contestada

What is the explicit rule for this geometric sequence?

2, 6, 18, 54, …

an=3⋅2^n

an=2⋅3^n

an=2⋅3^n−1

an=3⋅2^n−1

Respuesta :

28-12-2016

2.3=6
6.3=18
18.3=54
.
.
.
r(q)=3
--------------------------
an=a1q^n-1
an=2.3^n-1

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