Explanation
The formula for a geometric sequence is:
aₙ = a₁ · rⁿ⁻¹
Where:
-
aₙ = term you want
-
a₁ = first term
-
r = common ratio
-
n = term number
Example:
Find the 5th term if:
a₁ = 3 and r = 2
a₅ = 3 · 2⁴
a₅ = 3 · 16
a₅ = 48
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