Question

Which of the following is correct set notation?

(1,2,3)
1,2,3
{1,2,3}
none of the above

Answer 1

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The best and most correct answer among the choices provided by the question is {1,2,3} .       
    
Hope my answer would be a great help for you.

Answer 2

Answer:  The correct option is (C) {1, 2, 3}.

Step-by-step explanation:  We are given to select the option that gives the correct set notation.

We know that

The elements of a set are always written within curly brackets separated by comma.

For example, the set V of vowels in English Alphabet is written as follows :

V = {a, e, i, o, u}.

Therefore, from the given options, only the option (C) {1, 2, 3} is the correct set notation, because here the elements are written within curly brackets separated by commas.

Thus, (C) is the correct option.