lara v(s)dE x+at (x0)=2[o(x+a)+o(x=-a)+ [cos(x+)+cos(x-)+∫ X+t 2, Seeds 2[cos(x+)+cos(x=0)]+2[(x+1-1e-(x=+1)e (x,) f(a,r)da ar 2a JolJx-a(t-r cos ada dT [2 x+cos(x+t)-cos(x-t)I 20.8 1 0.6 0.4 0.2 0 x t 0 0.5 1 1.5 2 −1 −0.5 0 0.5 1 n 18 ( ) ( ) ( ) ( ) ( ) ( ) ( ) . . . . 1 1 ( , ) 2 2 1 1 cos cos 2 2 1 1 cos cos ( 1) ( 1) 2 2 x at x at x t x t x t x t V x t x at x at d a x t x t e d x t x t x t e x t e         + − + − + − = + + − +     = + + − +     = + + − + + − − − +             ( ) 0 ( ) ( ) 0 ( ) 1 ( , ) ( , ) 2 1 cos 2 1 2cos cos( ) cos( ) 2 t x a t x a t t x t x t W x t f d d a d d x x t x t            + − − − + − − −   =       =     = + + − −    