Chapter 1: Sets

Exercise

Question

Question: 1 (iii)

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Which of the following are examples of the null set

(iii) {x : x is a natural number, x < 5 and x > 7}

Answer

1
Determine whether there exists a number that satisfies the given condition.
Answer: It is a null set.
Reason: No natural number can be less than 5 and greater than 7 at the same time. Therefore, no element satisfies the given condition.
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