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對應齊次方程的特徵方程為r²;+r=0特徵根為r=0,r2=-1齊次方程通解為y=C1+C2e^(-x)又0是方程的特徵根可設其特解為y*=x(ax+b)帶入有2ax+(a+b)=x+1,解的a=1/2,b=1/2特解為y*=(1/2)x(x+1)知非齊次方程通解為Y=y+y*=C1…
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