Originally Posted by
Fibonacci Hi, just like to check my answer with someone for the this question
calculate y"+9y=H(t-1) y(0)=0 y'(0)=-2 using laplace method
H is heaviside fuction
my solution:
y=cos(3t)-2sin(3t)/3 + H(t-1)/9(H(t-1) + cos (3t-3) )
thanks