| 1 |
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| 2 |
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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| 3 |
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| 4 |
If AB = BA = I, then A and B are: |
- A. equal to each other
- B. multiplicative inverse of each other
- C. additive inverse of each other
- D. both singular
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| 5 |
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- A. 3×2
- B. 2×3
- C. 2×2
- D. 3×3
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| 6 |
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- A. singular
- B. non-singular
- C. rectangular
- D. null
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| 7 |
The additive inverse of a matrix A is: |
- A. A
- B. A<sup>-1</sup>
- C. - A
- D. A<sup>2</sup>
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| 8 |
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| 9 |
If A is a square matrix, then A + A<sup>t</sup> is: |
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| 10 |
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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