A-Level Maths OCR B (MEI) (H640)

Understand the language of vectors in two dimensions.

Scalar, vector, modulus, magnitude, direction, position vector, unit vector, cartesian components, equal vectors, parallel vectors, collinear.

Notation:

• Vectors printed in bold.
• Unit vectors $\bold{i}$, $\bold{j}$, $\bold{\hat{r}}$
• The magnitude of the vector $\bold{a}$ is written $|\bold{a}|$ or $a$.
• $\bold{a} = \begin{pmatrix} a_1 \\ a_2 \end{pmatrix}$