Which of the following is correct?
a) ∅ ⊆ {a, b} b) ∅ ∈ {a,b} c) {a} ∈ { a, b} d) a ⊆ {a, b}
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Which of the following is correct?
a) ∅ ⊆ {a, b} b) ∅ ∈ {a,b} c) {a} ∈ { a, b} d) a ⊆ {a, b}
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Answer:
the Right answer is b .
b) ∅ ∈ {a,b}