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ajprincess
Pls help:) Find the particular integral of (D^2+a^2)y=sinax a)successive integration b)using partial fraction
y=Asin(ax)+Bcos(ax) find y' and y''
y'=Aacos(ax)-Basin(ax) y"=-Aa^2sin(ax)-Ba^2cos(ax)
what do i do after this @abb0t
now, you plug it in for your second derivative and solve. your particular integral is any function which when substituted into the left hand side and simpliﬁed, results in the function on the right.