ΣΕΜΦΕ forum

loipon paidia eimai hlektrologos proto etos kai ..xriazome oso pio grigora ginete mia apantisi sto parakato: xy" - (x+2)y' + (1+2/x)y=x2e^-x , x>0 kai y1(x)=x einai mia lisi tis antistixis omogenous.... kserete kapoion tropo na mou protinete?opou kian epsaxa exoun tropo gia to pos linete i omog...