Recent content by encomes

Alright, so, if I have a determinant with n=4, i add all the rows to the first and i get (4-n +4-n +4-n +4-n), so, it's 0. Is there any other process? Thank you.

Thx for your reply, but I can't see how u get to this solution.. Can u show me the process? Thanks again!

How can I get the determinant of this matrix? 1-n 1 ...1 1 1 1-n ...1 1 . . . . . . . . 1 1 ... 1 1-n I think that the answer is 0 but... why? Thank you.