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25-06-2016
Mathematics

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What is the 9th term of the geometric sequence with a1=4 and ratio (multiplier) = -2?

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25-06-2016

[tex]a_{n}=a_{1}r^{n-1}[/tex]
[tex]a_{9}=4\times(-2)^{9-1}[/tex]
[tex]a_{9}=1024[/tex]

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