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![The equation of motion of a mass-spring system is given by
\[
m \ddot{x}+k x=F_{0} \sin (\omega t+\psi)
\]
subjected to initi](https://media.cheggcdn.com/media/d85/d8530e53-aefb-4b6f-9324-f30ede9e4db0/phpzXbXge)
???????Expert Answer
The complementary function is given by the general solution of the homogeneous equation: which is: where A and B are constants that can be determined from the initial conditions: At t=0, we have: