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AP EAMCET202420 May 2024Evening ShiftMathematicsMatricesActual

Let A , B , C , D and E be n n matrices, each with non-zero determinant. If ABCDE = I , then C ⁻¹=

Options

  1. AE ⁻¹ D ⁻¹ ~B ⁻¹ ~A ⁻¹
  2. BDEAB
  3. CA ⁻¹ ~B ⁻¹ D ⁻¹ E ⁻¹
  4. DABDE

Correct answer

B. DEAB

Step-by-step solution

ABCDE = I A ⁻¹ ABCDE = A ⁻¹ aligned & BCDE = A ⁻¹ CDE = B ⁻¹ ~A ⁻¹ & CD = B ⁻¹ ~A ⁻¹ E ⁻¹ C = B ⁻¹ ~A ⁻¹ E ⁻¹ D ⁻¹ & C ⁻¹= DEAB aligned

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