Превратите в произвидение: √3 + 2sina

√3 + 2sina = 2(√3/2 + Sinα) = 2(Sinπ/3 + Sinα) = = 2*(2Sin(π/6 + α/2)Cos(π/6 - α/2) )= 4Sin(π/6 + α/2)Cos(π/6 - α/2)