If a= {1,2,3} and b= {1,2,3,4,5,6,7,8} then a u b

a. {1,2,3}
b. 0
c. {1,2,3,4,5,6,7,8}

Option C

If A= {1,2,3} and B= {1,2,3,4,5,6,7,8} then A U B = { 1, 2, 3, 4, 5, 6, 7 , 8 }

Solution:

Given that,

A = {1, 2, 3}

B = {1, 2, 3, 4, 5, 6, 7, 8 }

To find: A U B

A U B means union of set A and B

The union of two sets A and B is the set of elements which are in A, in B, or in both A and B

Therefore,

Combine the elements of set A and set B to get union of A and B

A U B = { 1, 2, 3, 4, 5, 6, 7 , 8 }

Thus option C is correct

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