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Q.245 :  माना A = {1, 2, 3, 4, 5}, B = {2, 3, 6, 7}, तो (A x B) ∩ (B x A) में अव्ययों की संख्या है?

(a) 18
(b) 6
(c) 4
(d) 0
View Answer
Answer :4

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