Book
Advanced Engineering Mathematics
Author
Erwin Kreyszig
Edition
8th Edition
y=var('y') y=function('y',x) dy=diff(y,x,3)+9*diff(y,x,2)+27*diff(y,x,1)+27*y==0 desolve_laplace(dy,y,x) sol: 9/2*x^2*e^(-3*x)*y(0) + 3*x^2*e^(-3*x)*D[0](y)(0) + 1/2*x^2*e^(-3*x)*D[0, 0](y)(0) + 1/2*(3*y(0) + D[0](y)(0))*x*e^(-3*x) + 3/2*x*e^(-3*x)*y(0) + 1/2*x*e^(-3*x)*D[0](y)(0) + e^(-3*x)*y(0)
Solution by:
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