Last week, I worked on binomial expansions. It was the second challenge since I tried it last year. Last year, it was very difficult for me, and I could hardly understand it. So, I could not solve the ...

En mathématiques, le triangle de Pascal, est une présentation des coefficients binomiaux dans un triangle. À la ligne i et à la colonne j (0 ≤ j ≤ i) est placé le coefficient binomial. Il fut très tôt ...