5m Zen
Y xy x 2y 0
Y xy x 2y 0 pictures 5
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Y xy x
Y xy x 2y 0
x 2y xy u0026#39;+ y 0 y1 x
x 2y xy u0026#39;+( 1 x y 0
x 2y xy u0026#39;+( x 2 4 y 0
x^2yu0026#39;+xy+y^2u003d0
x 2y xy u0026#39;+( x 2 1 y 0
solve x 2y xy u0026#39;+ y 0
y xy x 2y 0
y xy u0026#39;+ x 2y 0 power series solution
