Corrigé du devoir surveillé n 5 - Lionel Ponton

Page 4. EXERCICE 5: A = 15 × (107)2 × 3 × 10 ?9 = 15 × 1014 × 3 × 10?9 = 45 × 105. = 4 500 000 = 4,5 × 106. B = 3 × 103 × 2 × 10 ?1. 12 × 10 ?2. = 3 × 2. 12. ×.