If A = 1, 2 and B = a, b, then A B =

  1. (1, a), (2, b)
  2. (1, a), (1, b), (2, a), (2, b)
  3. 1, 2, a, b
  4. (a, 1), (a, 2), (b, 1), (b, 2)
Answer

B) (1, a), (1, b), (2, a), (2, b)

A B is the set of all ordered pairs (a, b) with a in A, b in B: (1, a), (1, b), (2, a), (2, b). SLO M-09-A-15 · Knowledge

Mathematics MCQ · More Sets and Functions MCQs · Practise