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zhannawk [14.2K]

3 years ago

9

What is the nth term of the geometric sequence 4, 8, 16, 32, ... ?

1 answer:

sashaice [31]3 years ago

6 0

Formula:

a_n = a1 r^(n-1)

a1 is the first term = 4
r = common ratio = 8/4 = 2

so,
a_n = 4 (2)^(n-1)
or
a_n = 2 (2)^n

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