Réponses

2013-02-06T13:04:09+01:00
2013-02-06T13:38:57+01:00
Question 3 : A=-2 (2-2+3)(4-2-7)+4(-2)*+12-2+9 =3x(-5)+4x4+19 =-15+8+19 =12. A=-3/2 (-2-3/2+3)(4-3/2-7)+4(-3/2)*+12-3/2+9 =(4/2-3/2+6/2)(8/2-3/2-14/2)+4x(-9/4)+24/2+18/2 =7/2x(-9/2)+36/4+42/2 =-63/4+36/4+84/4 =57/4 ou 14,25.