If A , B and C are square matrices of same order and Ι is an identity matrix of the same order, such that C 2 = C B + A C and A B = Ι , then C - A - 1 is equal to

Question

If A , B and C are square matrices of same order and Ι is an identity matrix of the same order, such that C 2 = C B + A C and A B = Ι , then C - A - 1 is equal to, C - A, C - B, B - C, B + Ι

MARKS App · Accepted Answer

Given, ⇒ C C - B = A C - B + A B ⇒ C - A C - B = A B = Ι Hence, C - A - 1 = C - B

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