2
3
1

In a unit matrix, number of diagonal elements are
2
3
1

In a unit matrix, number of diagonal elements is/are:
2
3
1
0

In a unit matrix, number of diagonal elements are:
2
3
1
0

Unit matrix written in format of square matrix is also called as
identity matrix
unidentified matrix
direction matrix
dimension matrix

The dimension of unit matrix is
1 X n
n X1
n+1
1-n

If A=⎣⎢⎢⎡−1−232313−12⎦⎥⎥⎤, and I is the unit matrix of order 3, then A2+9I is equal to
2A
4A
6A
None of these

From a set of 2×2 matrices having 0 or 1 in each place, a matrix is chosen. The probability that it...
161
162
163
41

lf I is (9x9) unit matrix, then rank (I)=
0
3
6
9

Which of the following is/are true ? (i) Adjoint of a symmetric matrix is symmetric (ii) Adjoin...
(i)
(ii)
(iii)and(iv)
None of these

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