6 sin( 2П/3)^2- 2cos(П)-tg(П/6)^2
6×(√3/2)^2-2×(-1)-(√3/3)^2
6×3/4+2-3/9
3×3/2+2-3/9
9/2+2-3/9
9/2+2-1/3
27+12-2/6=37/6
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6 sin( 2П/3)^2- 2cos(П)-tg(П/6)^2
6×(√3/2)^2-2×(-1)-(√3/3)^2
6×3/4+2-3/9
3×3/2+2-3/9
9/2+2-3/9
9/2+2-1/3
27+12-2/6=37/6