37 Sans les calculer, donner le signe des produits suivants. A= (-13) (-7) B=(-0,36) X 3,7
C = 65 (-1,4) D=(-3) X (-5) X(-12) x 6
E = (-13) 5 X (-12) × (-6) x 11 X(-5) (-12) × (-6)
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