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Geometric Sequences and Series: Solving for Missing Values


General Questions


In a geometric sequence, a1 =1000 and a6 = 0.32. Find r.
1. 





In a geometric sequence, a10 = 2560 and r = 2. Find a1.
2. 





In a geometric sequence, a1 = 3, r = 5 and an = 234375
3. 





In a geometric series, s7 = 2499.968 and r = 0.2. Find a1.
4. 





In a geometric series, sn = 10235, a1 = 5 and r = 2. Find n.
5. 





In a geometric series, s6 = 4095 and a1 = 3. Find r.
6. 








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