- #1

- 430

- 0

1 1 0

1 0 0

Find the inverse of this matrix Mod 2

For the standard inverse I got

0 0 1

0 1 -1

1 -1 0

Now do I change all those -1's to 1? Or should I have done that at each step and not leave it to the last?

Is finding the inverse mod n, the same as saying find the inverse over the field k, where k = F

_{n}, where all values correspond to an integer in {0,1,2,..,n-1}? i.e in F

_{3}, {0,1,2} the number -1 would correspond to 2.