Réponse :
Explications étape par étape :
Bonjour
E = ( -1/3)² × 5⁻² × (3/5)³
E = 1/3² × 5⁻² × 3³/5³
E = 3³/3² × 5⁻²/5³
E = 3³⁻² × 5⁻²⁻³
E = 3 × 5⁻⁵
F = (2/7)⁴ × (7/4)² × ( - 49/2)³
F = 2⁴/7⁴ × 7²/(2²)² × ( - 7²)³/2³
F = 2⁴/7⁴ × 7²/2⁴ × ( - 7⁶)/2³
F = 2⁴/ (2⁴ 2³) × (- 7⁶) 7² / 7⁴
F = 1/2³ × 7⁶⁻²/ 7⁴
F = 2⁻³ × 7⁴/7⁴
F = 2⁻³
G = (2/3) ⁻² × (3/4)⁴ × (27/4)⁻¹
G = 3²/2²× (3/2²)⁴ × (2²/3³)
G = 3²/2² × (3⁴/2⁸) × (2²/3³)
G = (3² 3⁴) / 3³ × 2²/ (2² 2⁸)
G = 3²⁺⁴⁻³ × 2²⁻¹⁰
G = 3³ × 2⁻⁸
