JEE MATHEMATICS MCQ: RELATIONS

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Application +4 | -1

Let

A=\{1,2,3,4,5\} ; B=\{2,3,6,7\}

. Then the number of elements in

(A \times B) \cap(B \times A)

is :

View answer and explanation

Correct option: D

Option D (4) is correct because there are 4 elements that are present in both A x B and B x A, which are (2,2), (2,3), (3,2), and (3,3).

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