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Geometric Sequences
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Geometric Sequences
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20. Sequences, Series & Induction / Geometric Sequences / Problem 5
Problem 5
The recursive formula and the first term of a geometric sequence are given. Find the first eight terms.
a
n
= 2a
n-1
, a
1
= 5
A
5, 10, 20, 40, 80, 160, 320, 640
B
2, 4, 6, 8, 10, 20, 40, 80
C
10, 15, 20, 25, 125, 250, 500, 1000
D
5, 10, 15, 20, 25, 50, 100, 200
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