bjr
A = (3/5)² = 3²/5² = 9/25
B = (-1/4)³ (nombre négatif, exposant impair, signe -)
= - 1³/4³ = - 1/64
C = - (-3/10)⁵ = - ( -(3⁵/10⁵) ) = + 3⁵/10⁵ = 243/100 000
D = (1/3)⁻² = 1/(1/3)² (a⁻² = 1/a²)
= 1/(1²/3²)
= 1/(1/9)
= 9 (1/(a/b) = b/a)
E = (5/2)⁻³ = 1/(5/2)³ = 1/(5³/2³) = 2³/5³ = 8/125
F = (-1/2)⁻⁴ = 1/(-1/2)⁴ = + 1/(1/2⁴) = 2⁴ = 16
Réponse :
Explications étape par étape
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Écris chaque nombre sous la forme d’une fraction :
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Verified answer
bjr
A = (3/5)² = 3²/5² = 9/25
B = (-1/4)³ (nombre négatif, exposant impair, signe -)
= - 1³/4³ = - 1/64
C = - (-3/10)⁵ = - ( -(3⁵/10⁵) ) = + 3⁵/10⁵ = 243/100 000
D = (1/3)⁻² = 1/(1/3)² (a⁻² = 1/a²)
= 1/(1²/3²)
= 1/(1/9)
= 9 (1/(a/b) = b/a)
E = (5/2)⁻³ = 1/(5/2)³ = 1/(5³/2³) = 2³/5³ = 8/125
F = (-1/2)⁻⁴ = 1/(-1/2)⁴ = + 1/(1/2⁴) = 2⁴ = 16
Verified answer
Réponse :
Explications étape par étape
Bonjour
Écris chaque nombre sous la forme d’une fraction :