Question

let A={1,2,3,4,5,} B={4,5,6,7} then find A-B and B-A what do you observe
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Answer 1

Step-by-step explanation:

Given,

A={1,2,3,4,5}

B={4,5,6,7}

then find A-B=_____

B-A=_____

A-B={1,2,3,4,5}-{4,5,6,7}

={1,2,3}

Now,

B-A={4,5,6,7}-{1,2,3,4,5}

={6,7}

Therefore, A-B={1,2,3} and B-A={6,7}

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Answer 2

Step-by-step explanation:

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