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Geometric sequence

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What is the Geometric sequence between 1/3, 1/9, 1/27

Guest Mar 22, 2017

1⁺⁰ Answers

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1st term is 1/3 = $\dfrac{1}{3^1}$

2nd term is 1/9 = $\dfrac{1}{3^2}$

3rd term is 1/27 = $\dfrac{1}{3^3}$

Therefore general formula is $a_n = 3^{-n}$

MaxWong Mar 22, 2017

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