Solve the differential equation y'''-3y''+4y=e2x
using variation of parameters and wronskians. Please provide steps
especially after finding the wronskians.
($4.6 Variation of Parameters): Solve the equations (a)–(c)
using method of variation of parameters.
(a) y''-6y+9y=8xe^3x
(b) y''-2y'+2y=e^x (secx)
(c) y''-2y'+y= (e^x)/x