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OpenStudy (anonymous):
What is the 6th term of the geometric sequence where a1 = 625 and a3 = 25?
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OpenStudy (cwrw238):
geometric series is a1, a1*r , a1*r^2 .... so a1r^2 / a1 = a3/a1 = r^2 so r^2 = 25 / 625 = 1/25 6th term = a1* r^5 = 625 * (1/25)^5 ur calculator will help you work this out
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