Lets take an example of 3 x 3 matrix
Therefore, we can notice that determinant of such a matrix is equal to zero. We can prove the same thing by considering a matrix in which all the one column elements are zero.
So, it is one of the important property of determinant of matrices. If, you see any matrix consisting of a row or column having all zero elements then you can directly write value of its determinant equal to 0.