1. SLIET
MINOR TEST-1
MBA/2013 MGT-8102
Time:1 hour MM-15
Note: All questions are compulsory.
a) Tick the right answer from each of these questions (1-7):
1. The addition of the matrices gives a.
1. 3 x 3 matrix. 2. 3 x 2 matrix. 3. 2 x 3 matrix. 4. none of the above (1)
2. What is a, if B is a singular matrix? Where B is
A. 5
B. 6
C. 7
D. 8 (1)
3. In order to multiply two matrices, the number of columns in the first matrix must _________ the number of rows
in the second matrix.
1. be less than
2. be greater than
3. be equal
4. be multiple of (1)
4. The inverse of a matrix is found by __________.
1. multiplying the matrix by the identity matrix
2. dividing the adjoint of the matrix by the determinant
3. dividing the cofactor matrix by its determinant
4. dividing the matrix by its transpose (1)
5. If A and B are n × n matrices, which of the following does not equal (A + B)2
?
1. (A + B)A + (A + B)
2. BA2
+ 2AB + B2
3. (B + A)2
4. A2
+ AB + BA + B2
(1)
6. If A, B and C are matrices with orders 3×3, 2×3 and 4×2 respectively, how many of the following matrix
calculations are possible?
4B, A + B, 3BT
+ C, AB, BT
A, (CB) T
, CBA
(1) 3 (2) 4 (3) 1 (4) 2 (1)
7. The product of the two matrices is equal to the product of the two matrices
.
1. True 2. False (1)
