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OpenStudy (anonymous):
Find S8 for the series -2 + -10 + -50 + -250 +...
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Parth (parthkohli):
ratio is -10/-2 = 5 Formula would be: \(\Large \color{Black}{\Rightarrow -2{1 - 5^n \over 1 - 5} }\)
OpenStudy (anonymous):
soo what would the s8 series be?
OpenStudy (anonymous):
plug in 58 into the n maybe?
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