| 1 |
If A = [aij] and B = [bij] are two matrices of same order r × s, then order of A - B is: |
- A. r - s
- B. r × s
- C. r + s
- D. none of these
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| 2 |
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- A. scalarmatrix
- B. diagonalmatrix
- C. lower triangularmatrix
- D. uppertriangularmatrix
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| 3 |
If a matrix A is symmetric as well as skew symmetric, then: |
- A. A is null matrix
- B. A is unit matrix
- C. A is triangular matrix
- D. A is diagonal matrix
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| 4 |
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- A.
- B.
- C.
- D. diagonal matrix
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| 5 |
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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| 6 |
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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| 7 |
If A is a square matrix, then A + A<sup>t</sup> is: |
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| 8 |
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| 9 |
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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| 10 |
If A is a matrix of order m × n and B is a matrix of order n × p then the order of AB is: |
- A. p×m
- B. p×n
- C. n×p
- D. m×p
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