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Year 12 Specialist (Unit 3 & 4) Further matrices

Inverses and determinants for n×n matrices

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Questions
Question 1
196319
Use technology (or cofactor expansion) to find the determinant of \(A=\begin{pmatrix} 2 & 1 & 0
1 & 3 & 1
0 & 1 & 2 \end{pmatrix}\).
8
1 mark

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