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Determine 6th term in the geometric sequence who first term is 3 and whose common ratio is -4

User Velter
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1 Answer

6 votes


a_(6) = - 3072

The n th term of a geometric sequence is


a_(n) =
a_(1)
r^(n-1)

where
a_(1) is the first term and r the common ratio, hence


a_(6) = 3 ×
(-4)^(5) = 3 × - 1024 = - 3072


User Imnotanelephant
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