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OpenStudy (anonymous):
Find S1, S2, S3, S4, S5 and use these sums to approximate S. Then use the formula to find S. 8 + 2 + 1/2 + 1/8 + ...
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OpenStudy (dumbcow):
looks like a geometric sequence with r = 1/4
OpenStudy (dumbcow):
formula for infinite geometric sequence is: \[S = \frac{a}{1-r} = \frac{8}{1-\frac{1}{4}}\]
OpenStudy (anonymous):
how do you find the S4 and S5?
OpenStudy (dumbcow):
sorry i don't know what S1,S2... refer to
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