Question
Apply the method of variation of parameter to solve the differential equation:
Answer :
Word Count : 304
The given differential equation is: [ y'' + 6y' + 9y = \frac{1}{x^3} e^{-3x}, \quad x>0 ] The associated homogeneous equation is: [ y_h'': y'' + 6y' + 9y = 0 ] The characteristic equation is: [ r^2 + 6r + 9 = 0 ] [ (r + 3)^2 = _________ _______ _____ ________ ____ _______ ______ _______ __________ __________.
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The given differential equation is: [ y'' + 6y' + 9y = \frac{1}{x^3} e^{-3x}, \quad x>0 ] The associated homogeneous equation is: [ y_h'': y'' + 6y' + 9y = 0 ] The characteristic equation is: [ r^2 + 6r + 9 = 0 ] [ (r + 3)^2 = _________ _______ _____ ________ ____ _______ ______ _______ __________ __________.
____ ___ _______ __________ ____ _______ __________.
_____ ________ ______ _____ _____ ______ __________ ___ _____.
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