EXERCICE 1 A = B = 106 108,1 103 × × × × 1) A = 3 7
EXERCICE 4. 1) AB = 5,2 × tan 23°? 2,2 cm (b). 2) IJK = 90° - 32° = 58° (c). 3) x = arctan 54 ? 89° (c) arrondi au degré. 4) a = 180 ? 2×(180 ? 103) = 180 ? ...
EXERCICE 4. 1) AB = 5,2 × tan 23°? 2,2 cm (b). 2) IJK = 90° - 32° = 58° (c). 3) x = arctan 54 ? 89° (c) arrondi au degré. 4) a = 180 ? 2×(180 ? 103) = 180 ? ...