Show A and B are equivalent and state their common rank
1 2 ________A
3 4
4 3 _________B
2 1
A and B are matrices that they are 2 by 2(I couldn't put a braket around it
What I did is I did RREF and I got the same Identity. But, that doesn't prove that they are equivalent
Also, I know the rank is 2(but is it b/c number of nonzero row?-explain for me)
I thank you all in advance,
thank you