Question

H
If A-{1,2,3,4} B={3,4,5} find A delta B
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Answer 1

please clear what is delta-union or intersection

Answer 2

Answer:

A∆B ={(1,3),(1,4)(1,5),(2,3),(2,4),(2,5)(3,3)(3,4),(3,5),(4,3),(4,4),(4,5)}

Here first element of ordered pair is taken from the set A ,and second element is taken from the set B. ∆ is assumed as Cartesian product of sets.