Réponses

2014-04-23T20:15:02+02:00
A = (5√2)/3√5
A= (5√2 × √5)/(3√5×√5)
A=5√10/ 3×√25
A= 5√10/3×5
A= √10/3

B= (5+√3)/2√7
B =5/2√7 +√3/2√7
B=5√7/ 2×7 +√3×√7/2×7
B= (5√7+√21)/14