A matrix in which each element is zero is called a ________ matrix.
Unit matrix
Null matrix
Square matrix
None of these.
A matrix in which the number of rows is equal to the number of column is called a _______ matrix.
rectangular
square
column
row
If matrix AB = 0, then
A =0 or B = 0
A = 0 and B =0
It is not necessary that A = 0 or B = 0
n × 1
1 × n
1/n
( 1+ 1/n ) 2
A matrix having only one column is called a _______ matrix.
A matrix having only one row is called a ________ matrix.
If two matrices are conformable for addition, then AB =
A
B
A '
BA
