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<img src='http://www.elektroda.pl/cgi-bin/mimetex/mimetex.cgi?3$\frac{{d^2 y}}{{dx^2 }} - \frac{{dy}}{{dx}} 6y = 36x 50\sin x' title="3 frac \ $ (((d ^ 2) 
dx ^ 2)) - \ frac ((dy)) ((dx)) 6y = 36x 50 \ sin x" alt='3$\frac{{d^2 y}}{{dx^2 }} - \frac{{dy}}{{dx}} 6y = 36x 50\sin x' align=absmiddle>Trouver une solution particulière.
dx ^ 2)) - \ frac ((dy)) ((dx)) 6y = 36x 50 \ sin x" alt='3$\frac{{d^2 y}}{{dx^2 }} - \frac{{dy}}{{dx}} 6y = 36x 50\sin x' align=absmiddle>Trouver une solution particulière.