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Which option gives a correct notation for the empty set?

Answer and explanation

Correct answer: ∅

The empty set has no elements and is denoted by ∅ or by a pair of empty braces, {}. The symbol 0 is a number, not an empty set, and {0} is a set containing one element, namely 0. Likewise, {∅, 0} contains two elements, the empty set and the number 0. Hence option C is correct.

Related tags

SetsEmpty SetNotationNumber SystemsMathematicsClass 9 Mcq

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