Bonjour,
Exercice 2 :
1)
• 4³ = (2²)³ = 2⁶
Vraie
• 1⁶ × 6 > 16⁰
1 × 6 > 1
6 > 1
Vraie
• 3³ × 3² × 3 = 3³ × 3² × 3¹ = 3⁶
Faux
• 5² - 2³ = 25 - 8 = 17
1⁷ + 4² = 1 + 16 = 17
Vrai
• 5⁵ > 5³ + 5²
5⁵ > 125 + 25
3 125 > 150
Vrai
• 17¹ × 17⁰ = 17
Vrai
2)
A = (-7)³
B = 1 / (-2)²
C = 9⁶
D = 1/4³
E = 6⁵
F = 3⁵
3)
A = 6² + 4 / 2³
A = 6² + 2² / 2³
A = 8² / 2³
A = (2³)² / 2³
A = 2⁶ / 2³
A = 2³
B = 220 / 5³ - 5 × 3
B = 220 / 125 - 15
B = 220 / 110
B = 2
Exercice 3 :
5 × 5 × 5 × 5 × 5 = 3 125 = 5⁵
