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Geometric sequence -1, -5, -25, -125 the 9th term
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Geometric sequence -1, -5, -25, -125 the 9th term

User Noam Nevo
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1 Answer

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a9th = -1* 5^(n-1)

a9th = -1*5^(9-1)
a9th = -1*5^(8)
a9th = -390625

Hope this helps!
User Pherris
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