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Tajanae Tajanae
  • 22-07-2016
  • Mathematics
Answered

what is tye value of the fourth term in a geometric sequence for which a1=15 and r=1/3

Verified Answer :

dalendrk
dalendrk dalendrk
  • 23-07-2016

\(a_1=15;\ r=\dfrac{1}{3}\\\\a_4=a_1r^3\to a_4=15\cdot\left(\dfrac{1}{3}\right)^3=15\cdot\dfrac{1}{27}=\boxed{\frac{5}{9}}\)

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