CSEC Additional Mathematics · 2014 · Paper 1 · Question Q25

Given that \vec{OA} = \begin{pmatrix} -17 \\ 25 \end{pmatrix} and \vec{OB} = \begin{pmatrix} 4 \\ 5 \end{pmatrix} the vector \vec{AB} =

1. (A)\begin{pmatrix} -13 \\ 30 \end{pmatrix}
2. (B)\begin{pmatrix} -13 \\ -20 \end{pmatrix}
3. (C)\begin{pmatrix} -21 \\ 20 \end{pmatrix}
4. (D)\begin{pmatrix} 21 \\ -20 \end{pmatrix}