1.

Which ONE of the following is a linear non-homogeneous differential equation, where x and y are the independent and dependent variables respectively?

A. \(\frac{{dy}}{{dx}} + xy = {e^{ - x}}\)
B. \(\frac{{dy}}{{dx}} + xy = 0\)
C. \(\frac{{dy}}{{dx}} + xy = {e^{ - y}}\)
D. \({\frac{{dy}}{{dx}} + {e^{ - y}} = 0}\)
Answer» B. \(\frac{{dy}}{{dx}} + xy = 0\)


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