If A =
| 1 0 0 |
| 0 cosθ sinθ |
| 0 sinθ −cosθ |
then which of the following are correct?
1. A + adjA is a null matrix
2. A⁻¹ + adjA is a null matrix
3. A − A⁻¹ is a null matrix
Mathematics
2022
NDA Mathematics 2022
NDA 2022
Options
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