**Definition of Rank of Matrix**

*" Rank of Matrix is the order of that square matrix whose determinant is not zero. If determinant is*"

zero, then we take its sub matrix and if determinant of this sub matrix is not zero, then its order will be the rank of original matrix.

**There are two conditions for finding the rank of matrix:-**

1. Matrix must be square, it means numbers and columns of matrix must be same.

2. Matrix must have non zero value of determinant.