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می 6 find the generel solution to the following differential equation (Variation of parameter , x + 2y + y = x  x x lu

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می 6 find the generel solution to the following differential equation (Variation of parameter , x + 2y + y = x  x x lu
می 6 find the generel solution to the following differential equation (Variation of parameter , x + 2y + y = x  x x lux