

MCQOPTIONS
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1. |
The sum of the series 1\[\times \]3+3\[\times \]5+5\[\times \]7+..to n terms is |
A. | \[\frac{n(4{{n}^{2}}+6n)-1}{3}\] |
B. | \[\frac{n(n+1)(n+2)}{2}\] |
C. | \[\frac{(2n+1)(n+1)}{2}\] |
D. | \[\frac{{{n}^{2}}+1}{4}\] |
Answer» B. \[\frac{n(n+1)(n+2)}{2}\] | |