| 1 |
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- A. scalar matrix
- B. diagonalmatrix
- C. triangularmatrix
- D. none of these
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| 2 |
If two rows (or two columns) in a square matrix are identical (i.e. corresponding elements are equal), the value of the determinant is: |
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| 3 |
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| 4 |
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- A. 40
- B. -40
- C. 26
- D. -26
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| 5 |
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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| 6 |
If each element in any row or each element in any column of a square matrix is zero, then value of the determinant is: |
- A. 0
- B. 1
- C. -1
- D. none of these
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| 7 |
If A is a square matrix order 3 × 3 the |kA| equals: |
- A. k |A|
- B. k<sup>2</sup>|A|
- C. k<sup>3</sup> |A|
- D. k<sup>4</sup> |A|
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| 8 |
A<sup>-1</sup> exists if A is: |
- A. singular
- B. nonsingular
- C. symmetric
- D. none
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| 9 |
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| 10 |
If any two rows of a square matrix are interchanged, the determinant of the resulting matrix: |
- A. is zero
- B. is multiplicative inverse of the determinant of the original matrix
- C. is additive inverse of the determinant the original matrix
- D. none of these
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