সার্বিক সেট U ={1,2,3,4,5}, A = {1,2,4}, B = {1,3,5} হলে A'∪B' হবে-
Correct Answer: Option D
U ={1,2,3,4,5},
A = {1,2,4}, A'=U-A= {1,2,3,4,5}- {1,2,4} ={3,5}
B'= U-B={1,2,3,4,5}-{1,3,5} = {2,4}
A'∪B' = {3,5} U {2,4} ={2,4,3,5}
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