Question

how do i find the rank of a matrix???

Answer 1

take the matrix;
after that find maximum class non-singular squre matrix.
the maximum non-singular squre matrix class is the rank of the matrix...

Answer 2

check out the following link. You would get a better understanding.
http://easycalculation.com/matrix/matrix-rank.php

Answer 3

thank u sooo much @hitten101