| Across |
| 3. |
Diagonal of skew symmetric matrix are _________. |
| 8. |
Total number of possible matrices of order 3 × 3 with each entry 2 or 0 is |
| 9. |
Matrix A when multiplied with Matrix C gives the Identity matrix I, what is C? a) identity matrix b) inverse of A c) square of A d) transpose of A |
| 11. |
If |A| = 0, then A is ________ matrix. |
| 12. |
AB+BA is a ________ matrix if A and B are symmetric matrices of same order. |
| 13. |
The area of a triangle with vertices (-3, 0), (3, 0) and (0, k) is 9 sq. units. The value of k will be |
| 14. |
Transpose of a column matrix is ________ matrix. |
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| Down |
| 1. |
If A is a square matrix, then A – A’ is a _________ matrix. |
| 2. |
Which of the following property does not hold for matrix multiplication? a) associative b) distributive c) commutative d) additive inverse |
| 4. |
The matrix ____ is a _________ matrix. |
| 5. |
If the matrix A is both symmetric and skews symmetric, then A will be. |
| 6. |
If A is a skew symmetric matrix of ________ order then |A| = 0. |
| 7. |
If AB = I, then A and B are ________ to each other. |
| 8. |
If A = ___ and A2 – KA – 5I = 0, then K = |
| 10. |
Find x if ____ is singular. |
| 12. |
Any square matrix can be represented as the sum of a symmetric and a ________ symmetric matrix. |
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