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Q137. Which of the following statements about sets is true?

Mathematics — Sets, Functions and Groups — Question 137 of 232

A. {1, 2} = {2, 1}
B. a ∈ {{a}}
C. a ⊆ {a}
D. {a} ⊆ {{a}}

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Which of the following statements about sets is true? | Mathematics MCQ #137 | Examora | Examora