LEA11GUEGAIN LEA11GUEGAIN 02-11-2022 Mathématiques Answered Exercice 1: calculer, simplifier au maximum les expressions A=3/4-1/5×4/7; B=(3/4-1/5)×4/7; C=1/1-1/1-1/4; D=√125-√80+3√5; E=(√5-1)(√5+1)