1.

\[1+\frac{2}{3}-\frac{2}{4}+\frac{2}{5}-......\infty =\]

A. \[{{\log }_{e}}3\]
B. \[{{\log }_{e}}4\]
C. \[{{\log }_{e}}\left( \frac{e}{2} \right)\]
D. \[{{\log }_{e}}\left( \frac{2}{3} \right)\]
Answer» C. \[{{\log }_{e}}\left( \frac{e}{2} \right)\]


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