railway RRB Technician Grade 1 Mock Test 2024 Mathematics Sets Operations on Sets

If U = {1, 2, 3, 4, 5, 6, 7, 8, 9}

A = {1, 2, 3, 4,} 

B = {2, 4, 6, 8), then (A ∪ B)' is -

1
{5, 7, 9}
2
{2, 4, 6, 8}
3
{1, 2, 3, 4, 6, 8}
4
{1, 3, 5, 7, 9}
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