**Solutions to Sample Final Exam Problems, Math 246, Fall 2009**

Monday, January 01 16 / pdf

12 two real solutions of the system are e t * cos(2t) sin(2t) *, e t * sin(2t) cos(2t) *. A general solution is therefore x=c 1 e t * cos(2t) sin(2t) * +c 2 e t * sin(2t) cos(2t)*