(dx)/(dt)=2 x/t-0.194t

解答

\frac{d x}{d t} = 2 \frac{x}{t} - 0.194 t

x = - 0.194 ln (t) t^{2} + c_{1} t^{2}

求解步骤

\frac{d x}{d t} = 2 \frac{x}{t} - 0.194 t

求解线性方程:

x = - 0.194 ln (t) t^{2} + c_{1} t^{2}

x = - 0.194 ln (t) t^{2} + c_{1} t^{2}

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