Giải phương trinh vi phân:
y''-2y'+y=e^x+2xe^-x, thỏa y(0)=1,y'(0)=-1...
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Mathematics, 13.06.2021 18:40 rosieanneanney
Giải phương trinh vi phân:
y''-2y'+y=e^x+2xe^-x, thỏa y(0)=1,y'(0)=-1
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