MCQOPTIONS
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| 1. |
The sum of n terms of the series \[\frac{1}{1+\sqrt{3}}+\frac{1}{\sqrt{3}+\sqrt{5}}+\frac{1}{\sqrt{5}+\sqrt{7}}+.........\] is [UPSEAT 2002] |
| A. | \[\sqrt{2n+1}\] |
| B. | \[\frac{1}{2}\sqrt{2n+1}\] |
| C. | \[\sqrt{2n+1}-1\] |
| D. | \[\frac{1}{2}(\sqrt{2n+1}-1)\] |
| Answer» E. | |