(In contrast a scalar quantity has magnitude only - eg, the numbers 1, 2, 3, 4...) The diagram above represents a vector. The arrow displays its direction, hence this ...

The vector \(2k\) is twice as long as the vector \(k\). Double each number in \(k\) to get \(2k\). \(\mathbf{2k} = \begin{pmatrix} 6 \\ -4 \end{pmatrix}\) \(\mathbf{m ...

From trigonometry to calculus and vectors to geometry, few students take A-level mathematics thinking it's going to be an easy subject. But for Daily Mail readers who know their sequences from their ...