GATE | GATE-CS-2004 | Question 27

Let A, B, C, D be n × n matrices, each with non-­zero determinant. If ABCD = 1, then B^-1 is

(A)

CDA

(B)

D^-1C^-1A^-1

(C)

ADC

(D)

Does not necessarily exist

Answer: (A)

Explanation:

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