Réponse :
Bjr
Explications étape par étape :
3^n/3^n+1 = 1/ (1+(1/3)^n))
1/(1+(1/3)^n)) = 1/(1+(1/(3^n))
= 1/((3^n/3^n) + (1/3^n)
= 1/ ((3^n+1)/(3^n))
= 1 * (3^n/3^n + 1)
= 3^n/ 3^n+1
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Réponse :
Bjr
Explications étape par étape :
3^n/3^n+1 = 1/ (1+(1/3)^n))
1/(1+(1/3)^n)) = 1/(1+(1/(3^n))
= 1/((3^n/3^n) + (1/3^n)
= 1/ ((3^n+1)/(3^n))
= 1 * (3^n/3^n + 1)
= 3^n/ 3^n+1