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Which one of the following gives the members of the set A1 n B n C?



Which one of the following gives the members of the set A1 n B n C?
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  • A Φ
  • B {s}
  • C {t, u}
  • D {y, z}
Correct Answer: Option A
Explanation:
A1 = Elements in the universal set but not in A = {s, w, x, y, z}

B = {r, s. t, u}

C = {t, u, v, w, x}

A1 n B n C = elements common to the three sets = none = empty set = Φ

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