Given that for sets A and B, in a universal set E, A ⊆ B
MATHEMATICS
JAMB 1994
Given that for sets A and B, in a universal set E, A ⊆ B then A ∩(A ∩ B)' is
- A. A
- B. ϕ
- C. B
- D. E
Correct Answer: B. ϕ
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