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If number of rows in a matrix are equal to number of columns. Then matrix is called……. matrix
a) row                                     
b) column       
c) square               
d) all of these

c

If the matrix has order 3-by-3 then, it is…... matrix
a) rectangular                                      
b) square
c) column                             
d) all of these

b


d

Explanation:A matrix in which number of rows and columns are equal is called a square matrix. For example a) 2×2     b) 3×3    c) 1×1 so all the given matrices are square matrices. 


Rectangular-Matrices :


If the number of rows in a matrix are not equal to number of columns. Then matrix is called…. matrix
a) square                              
b) rectangular
c) column.                            
d) none of these

b



Choose the correct order of rectangular matrix.
a) 2-by-2.                             
b) 3-by-2        
c) 1-by-2.                              
d)both b & c

d

Explanation:Since number of rows and column are not same in (b) and (d), so option (d) is correct