
                        2                 
           d           d                  
4*f(t) + 2*--(f(t)) + ---(f(t)) = 2*sin(t)
           dt           2                 
                      dt                  

       /      /  ___  \         /  ___  \\  -t   6*sin(t)   4*cos(t)
f(t) = \C1*sin\\/ 3 *t/ + C2*cos\\/ 3 *t//*e   + -------- - --------
                                                    13         13   

True
