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OpenStudy (anonymous):
find a1 for each geometric series described Sn=1550,n=3,r=5 and Sn=1512,n=6,r=2
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OpenStudy (anonymous):
Do you know the formula for the sum of n series in a geometric progression
OpenStudy (anonymous):
no it didn't give the formula and i don't know it @thushananth01
OpenStudy (anonymous):
\[S_{n}=\frac{a(1-r^{n})}{1-r}\]
OpenStudy (anonymous):
why you give me the formula
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