| 1 |
If A is a square matrix, then: |
- A. |A<sup>t</sup>| = A
- B. |A<sup>t</sup>| = -A
- C. |A<sup>t</sup>| = |A|
- D. A<sup>t</sup>= A
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| 2 |
If A is non singular matrix then A<sup>t</sup> is: |
- A. singular
- B. nonsingular
- C. symmetric
- D. none
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| 3 |
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| 4 |
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| 5 |
If A = [a<sub>ij</sub>], B = [b<sub>ij</sub>] and AB = 0 then: |
- A. A = 0
- B. B = 0
- C. either A = 0 or B = 0
- D. A & B not necessarily zero
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| 6 |
The trivial solution of the homogeneous linear equations is: |
- A. (1, 0, 0)
- B. (0, 1, 0)
- C. (0, 0, 1)
- D. (0, 0, 0)
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| 7 |
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- A. 25
- B. 20
- C. 40
- D. 2a + 2b + 2c
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| 8 |
A matrix of order m×1 is called: |
- A. row matrix
- B. column matrix
- C. identity matrix
- D. scalar matrix
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| 9 |
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- A. 3
- B. -3
- C. 1/3
- D. -1/3
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| 10 |
If A and B are two matrices, then: |
- A. A B = O
- B. AB = BA
- C. AB = I
- D. AB may not be defined
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