# SOLUTION: I've been trying this problem for a while now. Please help me find the sum of the geometric sequence where: a sub4=24 and a sub9= 768 and n=9. thank you

Algebra ->  Algebra  -> Sequences-and-series -> SOLUTION: I've been trying this problem for a while now. Please help me find the sum of the geometric sequence where: a sub4=24 and a sub9= 768 and n=9. thank you      Log On

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 Algebra: Sequences of numbers, series and how to sum them Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Sequences-and-series Question 420010: I've been trying this problem for a while now. Please help me find the sum of the geometric sequence where: a sub4=24 and a sub9= 768 and n=9. thank youAnswer by ewatrrr(10682)   (Show Source): You can put this solution on YOUR website! ``` Hi geometric sequence 24/r^3 *r^8 = 768 r^5 = 32 r = 2 and ```