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## Glossary

### union

The union of two sets A and B is the set containing all the elements of A and B.

**Full Glossary List**

More in this topic

1 Magnitude 4

2 2D add and subtract

3 Distance between two points

4 2D add and subtract 2

5 3D add and subtract

6 Multiplication by a scalar 2

7 Unit vectors 2

8 Unit vectors

9 The section formula

10 Unit vectors 3

11 Area of a triangle

12 Area of a triangle 2

13 Vector to cartesian form

14 Scalar product

15 Angle between vectors

16 Angle between vectors 2

17 Perpendicular vectors

18 Perpendicular vectors 2

19 Perpendicular vectors 3

20 Perpendicular vectors 4

21 Collinear points

22 Memorise the formulae

23 Diagonals of a parallelogram

24 Sequence O-test

25 O-test 1

26 O-test 2

27 O-test 5

28 O-test 6

29 O-test 7

30 O-test 8

31 Exam O-test 2

32 Exam O-test 4

33 Exam O-test 5

34 Exam Question

35 Exam Question

36 Exam Question

37 Exam Question

38 Exam Question

39 Exam Question

40 Exam Question

41 Exam Question

42 Exam Question

43 Exam Question

44 Exam Question