1. 
                                y=e^{-t}(c_{1}\cos(t)+c_{2}\sin(t))
                            
                                                    
                                2. 
                                y=c_{1}\cos(t)+c_{2}\sin(t)
                            
                                                    
                                3. 
                                y=e^{2t}(c_{1}\cos(3t)+c_{2}\sin(3t))
                            
                                                    
                                4. 
                                y=e^{-\frac{t}{2}}(c_{1}\cos(t)+c_{2}\sin(t))
                            
                                                    
                                5. 
                                y=e^{-\frac{t}{2}}(c_{1}\cos(\frac{\sqrt{3}t}{2})+c_{2}\sin(\frac{\sqrt{3}t}{2}))
                            
                                                    
                                6. 
                                y=c_{2}e^{-3t}\sin(2t)
                            
                                                    
                                7. 
                                y=c_{1}\cos(\sqrt{2}t)+c_{2}\sin(\sqrt{2}t)
                            
                                                    
                                8. 
                                y=c_{1}\cos(\frac{5t}{3})+c_{2}\sin(\frac{5t}{3})
                            
                                                    
                                9. 
                                y=\frac{\cos(\sqrt{2}t)(1-2\sin(\sqrt{2}π)c_{2})}{2\cos(\sqrt{2}π)}+c_{2}\sin(\sqrt{2}t)
                            
                                                    
                                10. 
                                y=e^{-3t}(c_{1}\cos(4t)+c_{2}\sin(4t))