Question
Number of binary operations on the set {a, b} are:
  1. 8
  2. 20
  3. 10
  4. 16

Answer

  1. 16

Solution:

Let the given set be A = {a, b}

n(A) = 2

Total number of binary operations = 2(2 × Number of elements in the set)

= 2(2 × 2)

= 24

= 16

Therefore, the number of binary operations on the set {a, b} are 16.

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