Question

The sum of the series $\frac{1}{1.2}-\frac{1}{2.3}+\frac{1}{3.4}+.........$ up to ∞ is equal to(a) $log_{e}[\frac{4}{e}]$(b) $2log_{e}2$(c) $log_{e}2-1$(d) $log_{e}2$

Answer 1

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