[adsense:responsibe:9545213979]
Sage: var('t C1 C2') Sage: A = matrix([[3, -18], [2, -9]]) Sage: V=matrix([[0],[-1/18]]) Sage: U=matrix([[1],[1/3]]) Sage: SC=matrix([[C1],[C2]]) Sage: X1=U*e^(-3*t) Sage: X2=U*t*e^(-3*t)+V*e^(-3*t) Sage: M1=X1.augment(X2) Sage: dM=M1.determinant() Sage: R=M1*SC Sage: R(t=0,C1=3,C2=0) Resolucion [3] [1]
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