1. Chapter 1 Class 12 Relation and Functions (Term 1)
  2. Serial order wise
  3. Ex 1.4

Ex 1.4 ,1 (i) - Chapter 1 Class 12 Relation and Functions (Term 1)

Last updated at Aug. 11, 2021 by

Ex 1.4, 1 Class 12 Maths - NCERT Solutions - Determine if binary

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  1. Chapter 1 Class 12 Relation and Functions (Term 1)
  2. Serial order wise

    3. Ex 1.4

    Examples →

Transcript

Ex 1.4, 1 Determine whether or not each of the definition of given below gives a binary operation. In the event that * is not a binary operation, give justification for this. (i) On Z+, define * by a * b = a − b a * b = a − b. Here, a ∈ Z+ & b ∈ Z+ i.e. a & b are positive integers Let a = 2, b = 5 2 * 5 = 2 – 5 = –3 But –3 is not a positive integer i.e. –3 ∉ Z+ Hence, * is not a binary operation

Chapter 1 Class 12 Relation and Functions (Term 1)
Serial order wise

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