Réponses

  • Utilisateur Brainly
2013-11-03T14:05:39+01:00
A=2  et  B=1+1/2+1/3+1/4+1/12
montrer que A=B


B=1+1/2+1/3+1/4+1/12
=12/12+6/12+4/12+3/12+1/12
=24/12
=2
=A