-sint -2sint=3
-3sint=3
sint=-1
x=-П/2+2Пk
-2sint+sint=1/2
-sint=1/2
sint=-1/2
x=-П/6+2Пк Х=-5П/6+2ПК
3cost-cost=1
2cost=1
cost=1/2
x=плюс минусП/3+2ПК
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-sint -2sint=3
-3sint=3
sint=-1
x=-П/2+2Пk
-2sint+sint=1/2
-sint=1/2
sint=-1/2
x=-П/6+2Пк Х=-5П/6+2ПК
3cost-cost=1
2cost=1
cost=1/2
x=плюс минусП/3+2ПК