Find the value of a, b, c and d from the equation:
2
1
5
2
3
0
13
a
b
a
c
a
b
c
d
−
+
−




=




−
+




Rationalised 2023-24
MATRICES         43
8 A = [aij]m × n\ is a square matrix, if
(A) m < n
(B) m > n
(C) m = n
(D) None of these
9 Which of the given values of x and y make the following pair of matrices equal
3
7
5
1
2
3
x
y
x
+




+
−

  , 
0
2
8
4
y −






(A)
1,
7
3
x
y
=−
=
(B) Not possible to find
(C) y = 7,   
32
x
=−
(D)
1
2
3,
3
x
y
−
−
=
=
10 The number of all possible matrices of order 3 × 3 with each entry 0 or 1 is:
(A) 27
(B) 18
(C) 81
(D) 512
3