Bonsoir,
3⁷ × 3⁻³ = 3⁷⁺⁽⁻³⁾ = 3⁴
(-5)⁻² / (-5)⁴ = (-5)⁻²⁻⁴ = (-5)⁻⁶
100 000 × 10⁻³ = 10⁵ × 10⁻³ = 10⁵⁺⁽⁻³⁾ = 10²
(4³ × 2⁻³) / 2⁷ = ((2²)³ × 2⁻³) / 2⁷ = 2²ˣ³⁺⁽⁻³⁾⁻⁷ = 2⁻⁴
(10⁻⁴ × 10¹¹) / (10³)² = (10⁻⁴⁺¹¹) / (10³ˣ²) = 10⁷ / 10⁶ = 10⁷⁻⁶ = 10¹
Réponse :
bonsoir
3⁷ ×3⁻³=3⁷⁺⁽⁻³⁾=3⁴
(-5)⁻²/(-5)⁴=(-5)⁻²⁻⁴=(-5)⁻⁶
100 000 ×10⁻³=100=10²
4³ ×2⁻³/2⁷=2⁶× 2⁻³/2 ⁷=2⁶⁻³/2⁷=2³/2⁷=2³⁻⁷=2⁻⁴
10⁻⁴×10⁴/(10³)²=10⁻⁴⁺⁴/10³ˣ²=10⁰/10⁶=1/10⁶=10⁻⁶
Explications étape par étape