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Alison777
@Alison777
April 2019
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Vous pouvez m'aider? je comprend vraiment rien... :/
merci de vos réponses.
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mel004
Pour a=1 et b = 5
1) A= 1/4 [ ( 1+5)^2 - (1-5)^2 ] avec "^2" signifie au carré
= 1/4 [ (1+10+25) - (1-10 + 25) ]
= 1/4 (36 - 16)
= 1/4 * 20 = 20/4 =5
2) oui il a raison car a * b = 1* 5 = 5
Et A = 5
0 votes
Thanks 1
alison777
merci beaucoup! :)
alison777
Merci! :)
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bonsoir quelqu'un pourrais m'aider? merci
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aidez moi s'il vous plait. c'est urgent. merci
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Bonsoir, pourriez vous m'aider? merci!
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Lista de comentários
1) A= 1/4 [ ( 1+5)^2 - (1-5)^2 ] avec "^2" signifie au carré
= 1/4 [ (1+10+25) - (1-10 + 25) ]
= 1/4 (36 - 16)
= 1/4 * 20 = 20/4 =5
2) oui il a raison car a * b = 1* 5 = 5
Et A = 5