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Chapter 1 – Matrices And Determinants Multiple Questions and Answers.
| 41. | A zero matrix ‘O’ of order m-by-n and A + O = O + A = A, then the matrix is said to be | ||
| A. | additive identity matrix | ||
| B. | null/zero matrix | ||
| C. | symmetric | ||
| D. | skew symmetric | ||
| 42. | In real numbers, the additive identity is | ||
| A. | 1 | ||
| B. | 3 | ||
| C. | 0 | ||
| D. | −1 | ||
| 43. | In matrices, the columns are denoted by | ||
| A. | A | ||
| B. | B | ||
| C. | R | ||
| D. | C | ||
| 45. | If At = −A then A is said to be | ||
| A. | square matrix | ||
| B. | skew symmetric | ||
| C. | transpose | ||
| D. | symmetric | ||
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