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svlad2 [7]
3 years ago
12

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

Mathematics
2 answers:
Kay [80]3 years ago
7 0
The answer is (4/9)(3)^n-1
Anettt [7]3 years ago
4 0
<span>a1=4/9
r=an/a(nâ’1)=3
an=a1r^(nâ’1)=(4/9)*(3)^nâ’1</span>
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