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Stella13
@Stella13
April 2019
1
69
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Bonjour,
J'ai un exercice de DM et je n'y arrive pas... j'aurais besoin d'aide :
"Soient a et b deux nombres entiers non nuls.
Démontrer que :
= 8 "
Voilà, merci à celles et ceux qui pourront m'aider.
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winner123
Verified answer
Bonjour
[(2 a + b + 2 a - b) ( 2 a + b - 2 a + b) ]/ab = 8
[( 4 a ) (2 b)]/ab = 8
8 ab/ab = 8
8 = 8
0 votes
Thanks 0
winner123
si tu divises ab par ab , il te reste 8
winner123
si je divise 8 ab par ab, il me reste bien 8
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Coucou, est-ce que quelqu'un pourrait me dire : 76 = combien de % Merci :)
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Verified answer
Bonjour[(2 a + b + 2 a - b) ( 2 a + b - 2 a + b) ]/ab = 8
[( 4 a ) (2 b)]/ab = 8
8 ab/ab = 8
8 = 8