α sin α cos α tan α cot α 0 0 1 0 ni def. (30°) (45°) 1 1 (60
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α sin α cos α tan α cot α 0 0 1 0 ni def. 1 1 (30°) (45°) (60°) 1 0 ni def. 0 π (180°) 0 -1 0 ni def. (270°) -1 0 ni def. 0 (90°)
