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s’il vous plaît c l’exercice 2


Sil Vous Plaît C Lexercice 2 class=

Sagot :

EPHTAMINA890

A=1/3-1/3×4/7

=1/3-4/21

=(7-4)/21

=3/21

=(3÷3)/(21÷3)

=1/7

B=6/5÷(1/15-1/5)

=6/5÷(1-3)/15

=6/5÷(-2/15)

=6/5×(-15/2)

=-90/10

=-(90÷10)/(10÷10)

=-9