19. let y be the solution of the initial value problem +y = 6 cos cos 2x, dx y(0) = 3, y (0) = 1 let the laplace transform of y be f(s),then the value of f(1) i

19. Let y be the solution of the initial value problem +y = 6 cos cos 2x, dx y(0) = 3, y (0) = 1 let the Laplace transform of y be F(s),Then the value of F(1) is a) 5 b) c) 8 d)