1/6
Пошаговое объяснение:
sin(11π/6)⋅tg(11π/6)⋅cos(−π/6)=sin(2π - π/6)⋅tg(2π-π/6)⋅cos(π/6)= -sin( π/6)⋅(-tg(π/6))⋅cos(π/6)=sin( π/6)⋅(tg(π/6))⋅cos(π/6)=
=
