Question

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Answer 1

Answer:

12345

Step-by-step explanation:

Answer 2

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Option (d) {1,2,3,4,5}

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

A = {1,2,3,4}

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

U means Union

Union contain all common as well as uncommon numbers of set A and set B with no number being repeated.

So, (AUB) = {1,2,3,4,5}