Find-the-determinant-determinant-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-

Question Number 205155 by depressiveshrek last updated on 10/Mar/24

Find the determinant :

| \begin{matrix} 1 - λ & 1 & 1 & \dots & 1 \\ 1 & 1 - λ & 1 & \dots & 1 \\ 1 & 1 & 1 - λ & \dots & 1 \\ ⋮ & ⋮ & ⋮ & ⋱ & ⋮ \\ 1 & 1 & 1 & \dots & 1 - λ \end{matrix} |