Sun K.

asked • 08/09/13

Use the Laplace transform?

Use the Laplace transform to solve y^(4)-4y'''+6y"-4y'+y=0; y(0)=0, y'(0)=1, y"(0)=0, y'''(0)=1.

Answer: y=te^t-t^2*e^t+(2/3)t^3*e^t

L(y^(4))-4L(y''')+6L(y")-4L(y')+L(y)=L(0)

But I don't know what's L(y^(4)) and L(y''').

Sun K.

Never mind. Can you just please tell me how to find the inverse Laplace transform of (s^2-4s+7)/(s-1)^4.

Report

08/09/13

1 Expert Answer

By:

Grigori S. answered • 08/10/13

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