Valeur absolue->Intervalle

Traduire:

$\mid x-7\mid$ 9

par l'appartenance de $x$ à un intervalle ou à une réunion d'intervalles.

Votre réponse:

$x\in$

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• Description: exercices sur l'ordre, valeur absolue et inéquation en seconde. This is the main site of WIMS (WWW Interactive Multipurpose Server): interactive exercises, online calculators and plotters, mathematical recreation and games
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