Mathematics A-Level
union and intersection
What union and intersection means in Mathematics A-Level, as defined for WJEC.
Definition of union and intersection
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Reference: WJEC
Union A ∪ B contains elements in A, in B, or in both, matching "or"; intersection A ∩ B contains elements in both, matching "and".
Topics that use union and intersection
Related terms
- Domain
- domain and range
- Function
- Identity
- Intersection
- inverse functions
- Logarithm
- mathematical idealisations
Using union and intersection in the exam
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