Ambition
Find an equation for the nth term of a geometric sequence where the second and fifth terms are 2 and 16, respectively.



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zzr0ck3r
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err 12+48+16
so
(1)^n*2^n

zzr0ck3r
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or (2)^n
...

Ambition
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@zzr0ck3r these are my possible answers:
(a) an = 1 • (2)n  1
(b) an = 1 • 2n
(c) an = 1 • (2)n + 1
(d) an = 1 • 2n  1

Ambition
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@zzr0ck3r??

zzr0ck3r
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do you consider n to be natural?

Ambition
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yes

Ambition
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n = the term