Example 6 State which of the following sets are finite or infinite : (iv) {x : x ∈ N and x is prime} x is a natural number and x is prime So, x = 2, 3, 5, 7, 11, 13, 17,….. There are infinite number of prime numbers. So, this set has no end value. Hence the given set is infinite

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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