MCQOPTIONS
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| 1. |
The sum of the series \[\frac{2}{1}.\frac{1}{3}+\frac{3}{2}.\frac{1}{9}+\frac{4}{3}.\frac{1}{27}+\frac{5}{4}.\frac{1}{81}+......\infty \] is equal to |
| A. | \[{{\log }_{e}}3-{{\log }_{e}}2\] |
| B. | \[\frac{1}{2}+{{\log }_{e}}3-{{\log }_{e}}2\] |
| C. | \[\frac{1}{2}+{{\log }_{e}}3+{{\log }_{e}}2\] |
| D. | \[{{\log }_{e}}3+{{\log }_{e}}2\] |
| Answer» C. \[\frac{1}{2}+{{\log }_{e}}3+{{\log }_{e}}2\] | |