Let Find the value of a partial sum Sl such that...

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  1. camille ennis
    camille ennis
    here   
    also = 1/220 > 1/1000i.e. 0.001
    and = 1/1300 < 0.001.
    therefore only first 3 terms are needed to getS1 .
    so S1 = = ?

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