Question

The rank of mXn matrix where m < n cannot be more than [CO-I]
(i) m (ii) n (iii) mn (iv) None of these

Answer 1

Answer: m

Step-by-step explanation:

ORank of matrix is the order of largest possible square matrix whose determinant is non zero. Here the order of largest possible square matrix is (m x m), and if its determinant is not zero , then

Rank = m

For example consider the matrix