Exam (elaborations)
A level Further Pure Mathematics (Edexcel — Year 1)
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If det M = 0 then M is a ... Singular matrix. What are the steps of inverting a 3 x 3 matrix? 1. Find the determinant of the matrix. 2. Form the matrix of the minors of the matrix. 3. Form the matrix of cofactors. 4. Write down the transpose, C^T, of the matrix of cofactors. 5. A^-1 = 1/detA...
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