SOLUTION: In a geometric sequence, a3=9, a6=9/8, find a 12

SOLUTION: In a geometric sequence, a3=9, a6=9/8, find a 12

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Question 880066: In a geometric sequence, a3=9, a6=9/8, find a 12
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
Tn = t * r^(n - 1)
9 = t* r^2
9/8 = t * r^5
t=36 r=1/2
T12 = 36 * 1/2^(12)
t12=9/1024
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