Mathematics for IGCSE & O level - Sets (Section 1 - No. 19)
In the context of set theory, what does the notation P - Q mean?
The intersection of P and Q
The union of P and Q
All elements in P that are NOT in Q
All elements in Q that are NOT in P
Explanation
P - Q (or P\Q) contains all the elements that are in P but not in Q.
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