MCQOPTIONS
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MCQOPTIONS
| 1. |
The coefficient of \[{{x}^{n}}\] 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. | \[\left( \frac{{{3}^{n+1}}-1}{{{3}^{n+1}}} \right)\] |
| D. | None of these |
| Answer» B. \[\frac{{{3}^{n+1}}-1}{{{3}^{n+1}}}\] | |