Mathematics 4024 · O Level · Vectors in two dimensions

Vectors in two dimensions — practice question

(a)[2]

Express $\begin{pmatrix}2\\1\end{pmatrix} - 3\begin{pmatrix}-1\\2\end{pmatrix} + 2\begin{pmatrix}0\\-2\end{pmatrix}$ in the form of a single vector.

(b)[2]

Find $(2\ -1)\begin{pmatrix}0 & -1 & 2\\3 & 1 & -3\end{pmatrix}.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$\begin{pmatrix}5\\-9\end{pmatrix}$” …