arcsin(1)- arccos√3/2-arctg(-√ 3/3)/arcctg(-√3) = π/2 - π/6 + π/6:(π - π/6) = π/2 - π/6 + π/6:(5π/6) = π/3 + π·6/30π = π/3 + 1/5.
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arcsin(1)- arccos√3/2-arctg(-√ 3/3)/arcctg(-√3) = π/2 - π/6 + π/6:(π - π/6) = π/2 - π/6 + π/6:(5π/6) = π/3 + π·6/30π = π/3 + 1/5.