DP Further Mathematics HL Questionbank
Definition and properties of the inverse of a square matrix: \({\left( {AB} \right)^{ - 1}} = {B^{ - 1}}{A^{ - 1}}\) , \({\left( {{A^{\text{T}}}} \right)^{ - 1}} = {\left( {{A^{ - 1}}} \right)^{\text{T}}}\) , \({\left( {{A^n}} \right)^{ - 1}} = {\left( {{A^{ - 1}}} \right)^n}\) .
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