MCQOPTIONS
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MCQOPTIONS
| 1. |
If the \[{{n}^{th}}\] term of a series be \[3+n\,(n-1)\], then the sum of \[n\] terms of the series is |
| A. | \[\frac{{{n}^{2}}+n}{3}\] |
| B. | \[\frac{{{n}^{3}}+8n}{3}\] |
| C. | \[\frac{{{n}^{2}}+8n}{5}\] |
| D. | \[\frac{{{n}^{2}}-8n}{3}\] |
| Answer» C. \[\frac{{{n}^{2}}+8n}{5}\] | |