The solution of \[y{{e}^{-x/y}}dx-(x{{e}^{-x/y}}+{{y}^{3}})dy=0\] is

1.	The solution of \[y{{e}^{-x/y}}dx-(x{{e}^{-x/y}}+{{y}^{3}})dy=0\] is
A.	\[\frac{{{y}^{2}}}{2}+{{e}^{-x/y}}=k\]
B.	\[\frac{{{x}^{2}}}{2}+{{e}^{-x/y}}=k\]
C.	\[\frac{{{x}^{2}}}{2}+{{e}^{x/y}}=k\]
D.	\[\frac{{{y}^{2}}}{2}+{{e}^{x/y}}=k\]
Answer» B. \[\frac{{{x}^{2}}}{2}+{{e}^{-x/y}}=k\]

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The solution of \[y{{e}^{-x/y}}dx-(x{{e}^{-x/y}}+{{y}^{3}})dy=0\] is

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