if a={1,2,3,4,5,6,7,8} b={1,3,56,7,8,9}. then a∆b is equal to-
A. {2,7,9}
B. {3,5,8}
C. {1,2,3}
D. None of these
Answers
Answered by
1
Answer:
A. {2,7,9}
Step-by-step explanation:
A∆B stands for symmetric difference i.e objects that belong to A or B but not to their intersection.
Answered by
2
Answer:
1st option
Step-by-step explanation:
a∆b=(A-B)U(B-A)
A-B={2,4}
B-A={9}
a∆b={2,4}U{9}
={2,4,9}
hence answer is 1st option
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