Example 6 - State finite or infinite (i) {x : (x-1) (x-2) = 0 - Examples

  1. Chapter 1 Class 11 Sets
  2. Serial order wise
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Example 6, State which of the following sets are finite or infinite (i) {x : x ∈ N and (x – 1) (x –2) = 0} (x – 1) (x – 2) = 0 ⇒ x = 1,2 Given set = {1, 2}. Since, the set has 2 elements (countable). Hence, it is finite.

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.