Réponse :
Explications étape par étape
Bonjour
calculer : 3-3×3^(-2) /3^(-2) -3^2
= 3 - 3 x 3^(-2) / (3^(-2) - 3^2)
= 3 - 3^(-1) / (3^(-2) - 3^2)
= 3 - 1/3 / (1/9 - 9)
= (9/3 - 1/3) / (1/9 - 81/9)
= 8/3 / (-80/9)
= 8/3 x -9/80
= -8/80 x 9/3
= -1/10 x 3
= -3/10
Copyright © 2025 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Verified answer
Réponse :
Explications étape par étape
Bonjour
calculer : 3-3×3^(-2) /3^(-2) -3^2
= 3 - 3 x 3^(-2) / (3^(-2) - 3^2)
= 3 - 3^(-1) / (3^(-2) - 3^2)
= 3 - 1/3 / (1/9 - 9)
= (9/3 - 1/3) / (1/9 - 81/9)
= 8/3 / (-80/9)
= 8/3 x -9/80
= -8/80 x 9/3
= -1/10 x 3
= -3/10