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Ex 1.2, 1 - Chapter 1 Class 11 Sets - Part 4

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Ex 1.2, 1 Which of the following are examples of the null set (iv) {y: y is a point common to any two parallel lines} Parallel lines do not intersect. Hence, they have no common point. Therefore no elements in this set. ∴ It is a null set Null set (∅) : Which has no elements

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