December 2023 0 14 Report
1. Soit n un entier naturel non nul. Montrer que :
1/n

1/n+1
=
1/n(n+1)
2. Simplifier alors l’expression :
A=
1/1×2
+
1/2×3
+
1/3×4
+ ⋯ +
1/2016×2017
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