Réponse :
Bonjour,
b) 568 795 = 5,68795 × 10⁵
c) 987,145 = 9,87145 × 10²
d) 0,000 0038 = 3,8 × 10⁻⁶
e) 57,87 × 10⁷ = 5,787 × 10¹ × 10⁷ = 5,787 × 10⁸
f) 156,3 × 10⁻⁹ = 1,563 × 10² × 10⁻⁹ = 1,563 × 10⁻⁷
g) 0,000 057 × 10¹⁵ = 5,7 × 10⁻⁵ × 10¹⁵ = 5,7 × 10¹⁰
h) 125 487 × 10⁻⁹ = 1,25487 × 10⁵ × 10⁻⁹ = 1,25487 × 10⁻⁴
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Réponse :
Bonjour,
b) 568 795 = 5,68795 × 10⁵
c) 987,145 = 9,87145 × 10²
d) 0,000 0038 = 3,8 × 10⁻⁶
e) 57,87 × 10⁷ = 5,787 × 10¹ × 10⁷ = 5,787 × 10⁸
f) 156,3 × 10⁻⁹ = 1,563 × 10² × 10⁻⁹ = 1,563 × 10⁻⁷
g) 0,000 057 × 10¹⁵ = 5,7 × 10⁻⁵ × 10¹⁵ = 5,7 × 10¹⁰
h) 125 487 × 10⁻⁹ = 1,25487 × 10⁵ × 10⁻⁹ = 1,25487 × 10⁻⁴