In Exercises 1-6, find the general solution of the equation specified. dy =-4y+9e¹ 2. =-4y+3e dt 1. 3. dt 7. dt 5. d=3y-4e² 9. =-3y + 4 cos2r dt dt In Exercises 7-12, solve the given initial-value problem. +2y=e, y(0)=1 +y=cos 2r, -2y=7e². 4. y(0) = 5 y(0) = 3 dt = 2y + sin2r -2y=3e²y(0) = 10 10. +3y=cos 21, y(0)=-1 dt dt 12.-2y=7e", y(0) = 3 dt

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