In the expansion of \[\frac{a+bx}{{{e}^{x}}}\], the coefficient of \[{{x}^{r}}\] is

\[{{(-1)}^{r}}\frac{a-br}{r\,!}\]

In the expansion of \[\frac{a+bx}{{{e}^{x}}}\], the coefficient

1.	In the expansion of \[\frac{a+bx}{{{e}^{x}}}\], the coefficient of \[{{x}^{r}}\] is
A.	\[\frac{a-b}{r\,!}\]
B.	\[\frac{a-br}{r\,!}\]
C.	\[{{(-1)}^{r}}\frac{a-br}{r\,!}\]
D.	None of these
Answer» D. None of these

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In the expansion of \[\frac{a+bx}{{{e}^{x}}}\], the coefficient of \[{{x}^{r}}\] is

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