NDA2017MathematicsMatricesActual
If A is a square matrix, then the value of adj A^T-( adj A)^T is equal to
Options
- AA
- B2| ~A | I , where I is the identity matrix
- Cnull matrix whose order is same as that of A
- Dunit matrix whose order is same as that of A
Correct answer
C. null matrix whose order is same as that of A
Step-by-step solution
We know, Adj A^ T =( adj A)^ T adj A ^ T -( adj A )^ T = adj A ^ T - adj A ^ T =0 .