It is related to the reduicible to a homogeneous differential equations. It is important for solution of few differential equations and also it is in syllabus of b.sc , b.a , and engineering ( maths) not much important for competative exams.
A differential equation can be homogeneous in either of two respects: the coefficients of the differential terms in the first order case could be homogeneous functions of the variables, or for the linear case of any order there could be no constant term.
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