Question

If A =(1,2,3,4) and B = (4,5,6,7) then AUB should be : a)(1,2,3,5,6,7) b) (4) c) (1,2,3,4,5,6,7) d) (2,3,4,5,6,7)​

Answer 1

Answer:

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Step-by-step explanation:

c) (1,2,3,4,5,6,7)

The union of two sets A and B is the set of all those elements which are either  in A or in B.

Answer 2

Step-by-step explanation:

Given: If A ={1,2,3,4} and B = {4,5,6,7}

To find:Then AUB should be :

a)(1,2,3,5,6,7)

b) (4)

c) (1,2,3,4,5,6,7)

d) (2,3,4,5,6,7)

Solution:

Tip:

Definition of AUB:

AUB:{x;x€A or x€B}

That means the elements of AUB are the elements of A or B.

Here,

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

Thus,

AUB ={1,2,3,4,5,6,7}

Thus,Option c is correct.

Final answer:

AUB ={1,2,3,4,5,6,7}

Thus,Option c is correct.

Hope it helps you.

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