Réponses

2013-11-01T12:47:37+01:00
A=1/4 [(-2+(-3)]² -(-2-(-3))²]
=1/4[(-2-3)²-(-2+3)²]
=1/4[(-5)²-(1)²]
=1/4(25-1)
=1/4*24
=6
2013-11-01T12:47:59+01:00
A = 1/4[(-2+(-3)²-(-2-(-3))²]
   =1/4[(-2-3)²-(-2+3)²]
   =1/4[(-5)²-(1)²]
   =1/4(25-1)
   =1/4(24)
   =6