Réponses

  • Utilisateur Brainly
2013-11-03T14:11:56+01:00
on donne A= 2/3 x 5/4+1/2 et  B= 2/3 x 7/5 + 2/5
Montrer que A=B


A= 2/3 x 5/4+1/2
=10/12+6/12
=16/12
=4/3

 B= 2/3 x 7/5 + 2/5
=14/15+6/15
=20/15
=4/3

donc A=B

2013-11-03T14:17:17+01:00
A= 2/3 x 5/4+1/2 =10/12+6/12 =16/12 =4/3

B= 2/3 x 7/5 + 2/5 =14/15+6/15 =20/15 =4

donc A=B