yasminehandaoui07 yasminehandaoui07

09-12-2022
Mathematics

contestada

Soient x et y deux nombres réels tel que 0.20 est une valeur approché de x par défaut à 0.05 près et y appartient à [ -1, 1 sur 2 ]
1 ) a/ vérifier que 0,20 b/ montrer que 1sur 25 < x sur 3-2y <1 sur 8 .
2) montrer que 9 sur 2 est une valeur approché de 1 sur x à 0,5 près.

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