A unit vector is a vector that has a magnitude of 1 unit.

Vectors **i**, **j** and **k** are examples of unit vectors, since:

- vector
**i**is a vector in parallel to the x-axis, and has a magnitude of 1 unit - vector
**j**is a vector in parallel to the y-axis, and has a magnitude of 1 unit - vector
**k**is a vector in parallel to the z-axis, and has a magnitude of 1 unit

In Math, we put the symbol ∧ above the vector to represent a unit vector.

For vectors that do not have a magnitude of 1, we can divide them by their own magnitude to so that they become a unit vector.

Hence, to find the unit vector of a, we use this formula:

## Notes on H2 Math Vectors

You’ll find all the notes on H2 A Level Math Vectors topic here.

## All the notes for H2 A Level Math

Go here to find all the notes and resources for H2 A level Math.