grandes-ecoles 2021 Q18

grandes-ecoles · France · centrale-maths1__pc Number Theory Combinatorial Number Theory and Counting

Deduce $\forall n \in \mathbb { N } , C _ { n } = \frac { 1 } { n + 1 } \binom { 2 n } { n }$.

Deduce $\forall n \in \mathbb { N } , C _ { n } = \frac { 1 } { n + 1 } \binom { 2 n } { n }$.