Petit DM de math niveau SECONDE Montrez que pour tous reel x , (x²-8)/(x²+4) <=1 <= signifie plus petit ou egal MERCI

By: USER4163
27 Agustus 2025 mathematiques 5 minutes
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Question

Grade: Education Subject: mathematiques

Petit DM de math niveau SECONDE Montrez que pour tous reel x , (x²-8)/(x²+4) <=1 <= signifie plus petit ou egal MERCI

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Best Answer
(107)
Tu dois multiplier les deix cotes par x2+4 ca tefait x2-8<=x2+4 ce qui fait -8<4 c vrai pour tout x.
Answered on 27 Agustus 2025

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