MCQOPTIONS
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| 1. |
If \[x\ne 0\], then the sum of the series\[1+\frac{x}{2!}+\frac{2{{x}^{2}}}{3!}+\frac{3{{x}^{3}}}{4!}+.......\infty \] is |
| A. | \[\frac{{{e}^{x}}+1}{x}\] |
| B. | \[\frac{{{e}^{x}}\,(x-1)}{x}\] |
| C. | \[\frac{{{e}^{x}}\,(x-1)+1}{x}\] |
| D. | \[\frac{{{e}^{x}}\,(x-1)+1+x}{x}\] |
| Answer» E. | |