Report - TRIGONOMETRIE - HEIG-VDmath.heig-vd.ch/fr-ch/enseignement/Cours/Trigonometrie2013.pdf · Quadrant cosinus sinus tangente cotangente Ox+ 1 0 0 1 I + + + + Oy+ 0 1 1 0 II + Ox 1 0 0

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