A) {1, 4, 5, 6, 7}
B) {1, 4, 5}
C) {6, 7}
D) \[\phi \]
Correct Answer: D
Solution :
[d] \[A=\{1,2,3,4,5\}\],\[B=\{2,3,6,7\}\] \[A-B=\{1,4,5\},\]\[B-A=\{6,7\}\] \[(A-B)\cap (B-A)=\phi \]
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