NDA2010MathematicsMatricesActual
If A be a real skew-symmetric matrix of order n such that A^2+I=O , I being the identity matrix of the same order as that of A , then what is the order of A ?
Options
- A3
- BOdd
- CPrime number
- DEven
Correct answer
A. 3
Step-by-step solution
The correct answer is option (A).