The identity matrix is also called………matrix.
a) row
b) column
c) unit
d) none of these
Identity or unit matrix is dented by………..
a) O
b) I
c) Idn
d) II
Identity matrix is also………….
a) square
b) diagonal
c) both a & b
d) none of these
Explanation:As by definition identity matrix is diagonal and diagonal matrix is also square so option C is correct.
In identity matrix all the elements lying on the main diagonal must be……….
a) 0
b) 1
c) 2
d) 3
Transpose Matrix :
A matrix obtained by changing its rows into columns or columns into rows is called……….matrix.
a) rectangular
b) square
c) transpose
d) none of these
