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OpenStudy (anonymous):
What is the 8th term of the geometric sequence where a1 = 243 and a4 = 9
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OpenStudy (binary3i):
Geometric sequence a, ax, ax^2, ax^3, ax^4.............. a=243 ax^3=9 ax^3/a=9/243=1/27=x^3 so x= 1/3 now the 8th term+ ax^7=243(1/3)^7 now you sole it you'll get the answer.
OpenStudy (anonymous):
yeah i got it thankkk you(:
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