if \(\displaystyle A^5=O\) such that \(\displaystyle A^n\) is not equal to \(\displaystyle I\) for \(\displaystyle 1\leq n\leq 4,\;\;\)then \(\displaystyle (I-A)^{-1}\) equals?
where \(\displaystyle I\) is identity matrix, \(\displaystyle O\) is null matrix, \(\displaystyle A\) is a matrix
where \(\displaystyle I\) is identity matrix, \(\displaystyle O\) is null matrix, \(\displaystyle A\) is a matrix
