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Concatenation Operation refers to which of the following set operations :

1. Union
2. Dot
3. Kleene
4. None of the options

Option B is correct
Dot operation
Two operands are said to be performing Concatenation operation AB = A•B = {xy: x ∈ A & y ∈ B}. So option B is right

Concatenation refer to Dot.

So B is correct.
by

Whats the meaning of “dot” operation in a set?
Two operands are said to be performing Concatenation operation AB = A•B = {xy: x ∈ A & y ∈ B}. So meaning of dot operation refers to the concatenation. Ans B is right
Concatenation refers to dot  (a concat b) is represented as (a.b)
by
Concatenation Operation refers Dot set operations .

Option B is Correct
1. dot is the answer as in case of concatentation of two languages L and M,we can write the concatenation as L.M WHERE DOT is used.

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