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sin(30° + d)
(1/2) cosd + (√3/2) sind
sin(60° - d)
(√3/2) cosd - (1/2) sind
cos(d + 45°)
(√2/2) (cosd - sind)
cos(d - 60°)
(1/2) cosd + (√3/2) sind
tg(45° + d)
(1 + tgd) / (1 - tgd)
tg(60° - d)
(√3 - tgd) / (1 + √3 tgd)
