Recent content by Meekah

I need help with solving this weird equation... What is: \left[ z^{n} \right] (ln(1-z))^{2} / (1-z)^{m+1}?

I have problem with prooving those two identities. Any help would be much appriciated! Show that: a) \begin{Bmatrix} m+n+1\\ m \end{Bmatrix} = \sum_{k=0}^{m} k \begin{Bmatrix} n+k\\k \end{Bmatrix} b) \sum_{k=0}^{n} \begin{pmatrix} n\\k \end{pmatrix}...