a=(4−3)\mathbf{a} = \begin{pmatrix} 4 \\ -3 \end{pmatrix}a=(4−3) b=(−25)\mathbf{b} = \begin{pmatrix} -2 \\ 5 \end{pmatrix}b=(−25)
Work out 3a+b3\mathbf{a} + \mathbf{b}3a+b as a column vector.
Hence, work out 9a+3b9\mathbf{a} + 3\mathbf{b}9a+3b as a column vector.
75 exam-style questions on WJEC GCSE Maths Vectors. Each one has a worked solution and a mark scheme showing where the marks go.