MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
| 1. |
The sum of the series \[\frac{1}{1+{{1}^{2}}+{{1}^{4}}}+\frac{2}{1+{{2}^{2}}+{{2}^{4}}}+\frac{3}{1+{{3}^{2}}+{{3}^{4}}}+.........\] to \[n\] terms is |
| A. | \[\frac{n({{n}^{2}}+1)}{{{n}^{2}}+n+1}\] |
| B. | \[\frac{n(n+1)}{2({{n}^{2}}+n+1)}\] |
| C. | \[\frac{n({{n}^{2}}-1)}{2({{n}^{2}}+n+1)}\] |
| D. | None of these |
| Answer» C. \[\frac{n({{n}^{2}}-1)}{2({{n}^{2}}+n+1)}\] | |