MCQOPTIONS
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MCQOPTIONS
| 1. |
The sum of the first n terms of the series \(\frac{1}{2} + \frac{3}{4} + \frac{7}{8} + \frac{{15}}{{16}} + \ldots \) is equal to |
| A. | \({{\rm{2}}^{\rm{n}}}{\rm{-\;n - 1}}\) |
| B. | \({\rm{1-}}\;{{\rm{2}}^{{\rm{ - n}}}}\) |
| C. | \({{\rm{2}}^{{\rm{ - n}}}}{\rm{ + \;n - 1}}\) |
| D. | \({{\rm{2}}^{\rm{n}}}{\rm{ - 1}}\) |
| Answer» D. \({{\rm{2}}^{\rm{n}}}{\rm{ - 1}}\) | |