| Exam Board | OCR |
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| Module | FP1 (Further Pure Mathematics 1) |
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| Year | 2011 |
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| Session | January |
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| Topic | Matrices |
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5 Given that \(\mathbf { A }\) and \(\mathbf { B }\) are non-singular square matrices, simplify
$$\mathbf { A B } \left( \mathbf { A } ^ { - 1 } \mathbf { B } \right) ^ { - 1 } .$$