(a)[1]
Calculate $3M$.
(b)[2]
Calculate $M^{-1}$.
Mathematics 0580 · IGCSE · Algebraic manipulation
Algebraic manipulation — practice question
Given that $M = \begin{pmatrix}5 & -3 \\ -1 & 2\end{pmatrix}$.
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This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The resulting matrix is $\begin{pmatrix} 15 & -9 \\ -3 & 6 \end{pmatrix}$” …
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