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Year 11 Specialist (Unit 1 & 2) Matrices

Solution of simultaneous equations using matrices

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Questions
Question 1
195299
A pair of simultaneous equations \(5x+2y=9\) and \(3x+4y=7\) is written as \(AX=B\). Find \(\det(A)\) for the coefficient matrix \(A=\begin{pmatrix}5 & 2
3 & 4\end{pmatrix}\).
14
1 mark

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