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Chapter 1 – Matrices And Determinants Multiple Questions and Answers.
| 31. | A scalar is denoted by | ||
| A. | n | ||
| B. | k | ||
| C. | r | ||
| D. | a | ||
| 32. | In matrices (AB)−1 equals to | ||
| A. | B−1 | ||
| B. | A−1 | ||
| C. | B−1 A−1 | ||
| D. | A−1 B−1 | ||
| 33. | If the number of rows in A matrix are equal to the number of column in B matrix, then A and B are comfortable for | ||
| A. | product | ||
| B. | division | ||
| C. | transpose | ||
| D. | making identity | ||
| 34. | If Bt = B then the matrix B is called | ||
| A. | symmetric | ||
| B. | skew symmetric | ||
| C. | Transpose | ||
| D. | determinant | ||
| 35. | In a unit matrix, number of diagonal elements are | ||
| A. | 2 | ||
| B. | 3 | ||
| C. | 1 | ||
| D. | 0 | ||
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