| 1 |
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- A. 25
- B. 20
- C. 40
- D. 2a + 2b + 2c
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| 2 |
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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| 3 |
|
- A.
- B.
- C.
- D. diagonal matrix
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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. 40
- B. -40
- C. 26
- D. -26
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| 6 |
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| 7 |
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- A. scalar matrix
- B. diagonalmatrix
- C. lower triangularmatrix
- D. upper triangularmatrix
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| 8 |
If A is a matrix of order m × n, then the number of elements in each row of A is: |
- A. m
- B. n
- C. m + n
- D. m - n
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| 9 |
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| 10 |
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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