Ivan Shishkin, Rye (1878)

Problems/Set theoryExerciseUnreviewed

Reconnaître un point fixe

by Ancient Tree·
21
Difficulty scaleÉchelle de difficulté

This score reflects both the level of the required concepts and the difficulty of the solution.Ce score tient compte à la fois du niveau des notions nécessaires et de la difficulté de la résolution.

  1. 1–10First steps / middle schoolPremiers pas / collège
  2. 11–25Beginner / high schoolDébutant / lycée
  3. 26–50Intermediate / undergraduateIntermédiaire / licence
  4. 51–70Advanced / graduateAvancé / master
  5. 71–90Expert / specializedExpert / spécialisé
  6. 91–100Research levelNiveau recherche
These levels are approximate guides.Ces niveaux sont des repères approximatifs.
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On considère la fonction f:R→Rf:\R \rightarrow \R définie par f(x)=3x−4f(x)=3x-4.

  1. Le nombre 22 est-il un point fixe de ff ?
  2. Le nombre 00 est-il un point fixe de ff ?
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