Respuesta :

crisforp
We obtain sin( 11pi/12 - 2pi/3 ) = sin( 11pi/12 - 8pi/12 ) = sin( 3pi/12) = sin(pi/4) = [tex] \frac{ \sqrt{2} }{2} ;[/tex]  (ave the formula sinxcosy - cosxsiny = sin(x-y));