Question

(A³)-¹= (A-¹)³ where A is a square matrix and|A| ≠ 0​

Answer 1

Step-by-step explanation:

A²=I

A.A=I

Post multiplying byA

−1

both the sides

A.(AA

−1

)=I.A

−1

AI=IA

−1

Hence, A

−1

=A