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Solution


Q.

A=[aij]m×n is a square matrix, if
1 m<n  
2 m>n  
3 m=n  
4 None of these  

Ans.

(3)

Ans.    m=n

Explanation:

It is known that a given matrix is said to be a square matrix if the number of rows is equal to the number of columns.

∴   If m=n, then [aij]m×n is a square matrix.