Bonjour je suis bloqué pouvez vous maodez svp

A=-21 sur 15
B=-49 sur -35

Merci de votre aide
mdr

By: USER5432
28 Agustus 2025 mathematiques 5 minutes
4.5
140 views 140 comments 13 shares

Question

Grade: Education Subject: mathematiques
Bonjour je suis bloqué pouvez vous maodez svp

A=-21 sur 15
B=-49 sur -35

Merci de votre aide
mdr
Asked by:
140 Viewed 140 Answers

Answer (140)

Best Answer
(182)
Bonsoir,

A = - 21/15
A = 3 x - 7 / 3 x 5
A = - 7/5

B = - 49/ - 35
B = 49/35
B = 7 x 7 / 7 x 5
B = 7/5
Answered on 28 Agustus 2025

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- démontrer que Un est décroissante à partir de n=2
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-Démontrer que Un est majorée par 8/5

Voilà ce que je sais la suite Un est décroissante si pour tout entier naturel : Un+1 est inférieure ou égale à Un mais je ne sais pas quoi en faire
Merci à tous de bien vouloir m'aider

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