Mathematics 0580 · IGCSE · Algebraic manipulation

Algebraic manipulation — practice question

Here, $M = \begin{pmatrix}8 & 2\\7 & 3\end{pmatrix}$ while $N = \begin{pmatrix}4 & -1\\-3 & 5\end{pmatrix}$.
(a)[2]

Determine MN.

(b)[2]

Determine $M^{-1}$.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$\begin{pmatrix}26 & 2\\19 & 8\end{pmatrix}$ ” …

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