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Question

For any three sets A={1,2,3}
B={2,3,4},C={1,2,3,4,5};AB= & ABC=

A
{1,2,3,4}
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B
{1,2,3,5}
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C
{1,2,3,4,5}
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D
{2,3,4,5}
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Solution

The correct option is C {1,2,3,4,5}
Given three sets A={1,2,3}
B={2,3,4},C={1,2,3,4,5}

Now, AB={1,2,3}{2,3,4}={1,2,3,4}

Also, ABC={1,2,3,4}{1,2,3,4,5}
ABC={1,2,3,4,5}

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