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Invonnito
@Invonnito
January 2021
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Svp juste l'exercice
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rosiemuller2000
Verified answer
Coucou
a-(b-c)
= a-(1/35 + 45/21)
= a -(3/105 + 225/105)
= -8/21 -228/105
= -40/105 -228/105
= -268/105
a-b+c
= -8/21-1/35 + 45/21
= -8/21 -3/105 + 225/105
= -8/21 -228/105
= -40/105 -228/105
= -268/105
on remarque que a-(b-c) = a-b+c
voila j espere t avoir aider
2 votes
Thanks 1
Invonnito
Merci
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Verified answer
Coucoua-(b-c)
= a-(1/35 + 45/21)
= a -(3/105 + 225/105)
= -8/21 -228/105
= -40/105 -228/105
= -268/105
a-b+c
= -8/21-1/35 + 45/21
= -8/21 -3/105 + 225/105
= -8/21 -228/105
= -40/105 -228/105
= -268/105
on remarque que a-(b-c) = a-b+c
voila j espere t avoir aider