Question

Show that if A is nxn and has all 0’s on and below the diagonal then An = 0. Hint: do not at first be too ambitious. First find A2 and observe something useful about it. What about A3?

Answer 1

What is An?

Answer 2

the matrix

Answer 3

commonly seen as Ax=b.
this is An=0.

Answer 4

Oh I thought there might have been a difference
because you called the matrix A then you called it An

Answer 5

Are you saying n is an eigenvector ?

Answer 6

honesly i dont know wat to do. this is what the teacher asked us

Answer 7

Or are you say An is the matrix?

Answer 8

idk..lol

Answer 9

Ok I think

and