Let the set A is {1, 2, 3} and B is {2, 3, 4}. Then the number of elements in A U B is?

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answerhappygod
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Let the set A is {1, 2, 3} and B is {2, 3, 4}. Then the number of elements in A U B is?

Post by answerhappygod »

a) 4
b) 5
c) 6
d) 7
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