(a)[1]
Calculate $\mathbf{a} + \mathbf{b}$.
(b)[1]
Calculate $3\mathbf{c}$.
Mathematics 0580 · IGCSE · Coordinates
Coordinates — practice question
Here, $\mathbf{a} = \begin{pmatrix}4\\9\end{pmatrix}$, $\mathbf{b} = \begin{pmatrix}-6\\1\end{pmatrix}$, and $\mathbf{c} = \begin{pmatrix}13\\-2\end{pmatrix}$.