Answer:
decimal point is moved one digit towards the left when divided by 10.
for example:
50.1 ÷ 10 = 5.01
hope that helps you...
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First consider the homogeneous part,
which has characteristic equation
This has roots
, so the characteristic solution is
For the nonhomogeneous part, consider a solution of the form
which has second derivative
Substituting into the ODE gives
Matching up coefficients gives the system
which has solutions
So the particular solution is
Therefore the general solution is