The nth derivative of \[x{{e}^{x}}\] vanishes when [AMU 1999]

1.	The nth derivative of \[x{{e}^{x}}\] vanishes when [AMU 1999]
A.	\[x=0\]
B.	\[x=-1\]
C.	\[x=-n\]
D.	\[x=n\]
Answer» D. \[x=n\]

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The nth derivative of \[x{{e}^{x}}\] vanishes when [AMU 1999]

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