Let #p# be a non singular matrix #1+p+p^2+p^3+cdots+p^n=O# (#O# denotes the null matrix), then #p^-1# is?
2 Answers
Oct 25, 2017
The answer is
Explanation:
We know that
Multiply both sides by
Therefore,
Oct 25, 2017
See below.
Explanation:
and finally
Also can be solved as