Bonsoir !
Exercice 3 :
A = 20/13 : 15/26 + 10/3
Règle des priorités opératoires :
→ A= 20/13×26/15+10/3 =>
A= 4×2/3+10/3 = 18/3 = 6
→ B = 7√6-2√24+5√54
B = 7√6 - 4√6 + 15√6 = 18√6
→ C = 12×10-⁴×5×10⁴ / 15×10²×2×10²
C = 12×5/15×2 × 10-⁴×10⁴/10²×10²
C = 60/30 × 10-⁴ = 2 × 10-⁴ = 0,0002
Bonne soirée.
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Bonsoir !
Exercice 3 :
A = 20/13 : 15/26 + 10/3
Règle des priorités opératoires :
→ A= 20/13×26/15+10/3 =>
A= 4×2/3+10/3 = 18/3 = 6
→ B = 7√6-2√24+5√54
B = 7√6 - 4√6 + 15√6 = 18√6
→ C = 12×10-⁴×5×10⁴ / 15×10²×2×10²
C = 12×5/15×2 × 10-⁴×10⁴/10²×10²
C = 60/30 × 10-⁴ = 2 × 10-⁴ = 0,0002
Bonne soirée.