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Sousou5525525
@Sousou5525525
April 2019
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Soit f la fonction définie sur R par f(x)=x².
On donne n et m deux nombres réels quelconques.
Calculer en fonction de n et m, l'expression suivante:
1/2(f(n+m)-(f(n)+f(m)))
On simplifiera l'expression.
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isapaul
Verified answer
Bonjour
La fonction f(x) = x² soit
f(n+m) = (n+m)² = n²+m²+2nm
f(n) = n²
f(m) = m²
on recherche
1/2( f(n+m) - ( f(n) +f(m) ) )
1/2 ( (n²+m²+2nm) - n² - m² )
1/2 ( 2nm)
nm
Bonne fin de journée
1 votes
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Lista de comentários
Verified answer
BonjourLa fonction f(x) = x² soit
f(n+m) = (n+m)² = n²+m²+2nm
f(n) = n²
f(m) = m²
on recherche
1/2( f(n+m) - ( f(n) +f(m) ) )
1/2 ( (n²+m²+2nm) - n² - m² )
1/2 ( 2nm)
nm
Bonne fin de journée