MCQOPTIONS
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MCQOPTIONS
| 1. |
The coefficient of xn in the expansion of \(\frac{1}{{(1 - x)(3 - x)}}\) is |
| A. | \(\frac{{{3^{n + 1}} - 1}}{{{{2.3}^{n + 1}}}}\) |
| B. | \(\frac{{{3^{n + 1}} - 1}}{{{3^{n + 1}}}}\) |
| C. | \(2\left( {\frac{{{3^{n + 1}} - 1}}{{{3^{n + 1}}}}} \right)\) |
| D. | None of these |
| Answer» B. \(\frac{{{3^{n + 1}} - 1}}{{{3^{n + 1}}}}\) | |