NDA2018MathematicsMatricesActual
If A and B are two invertible square matrices of same order, then what is ( AB )⁻¹ equal to?
Options
- AB ⁻¹ ~A ⁻¹
- BA ⁻¹ ~B ⁻¹
- CB ⁻¹ ~A
- DA ⁻¹ ~B
Correct answer
A. B ⁻¹ ~A ⁻¹
Step-by-step solution
( AB )⁻¹= B ⁻¹ ~A ⁻¹