1.

If   \[{{T}_{n}}=\frac{{{3}^{n}}}{2\,(n\,!)}-\frac{1}{2\,(n\,!)},\] then \[{{S}_{\infty }}=\]

A. \[\frac{{{e}^{3}}-1}{2}\]
B. \[\frac{{{e}^{3}}-e}{2}\]
C. \[\frac{e-3}{2}\]
D. None of these
Answer» C. \[\frac{e-3}{2}\]


Discussion

No Comment Found

Related MCQs