CORRIGE : OPPOSE d ' un nombre relatif
EVALUATION :
opp. (-5 ) = (+5)
opp (+4 ) = (- 4)
opp. (+ 3 / 4) = (- 3 / 4)
II)Faire les exercices suivants:
opp. x = - x
opp 1 /x = - (1 / x )