Réponse:
1. 5 30 45 60 85
Cos 0.99 0.86 0.71 0.5 0.08
Sin. 0.08 0.5 0.71 0.87 0.99
Tan. 0.08 0.58 1 1.73 11.4
3.cos a =adjacent sur hypothenuse
Sin a = oppose sur hypothenuse
Tan a = oppose sur adjacent
