MCQOPTIONS
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| 1. |
\[\frac{{{1}^{2}}.2}{1\,!}+\frac{{{2}^{2}}.3}{2\,!}+\frac{{{3}^{2}}.4}{3\,!}+.....\infty =\] [UPSEAT 1999] |
| A. | \[6\,e\] |
| B. | \[7\,e\] |
| C. | \[8\,e\] |
| D. | \[9\,e\] |
| Answer» C. \[8\,e\] | |