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Question -

If A={0,1,2,3,4,5,6,7,8,9,10}, then insert the appropriate symbol or in each of the following blank spaces:
(i) 4 ……A
(ii) -4……A
(iii) 12…..A
(iv) 9…..A
(v) 0……A
(vi) -2……A



Answer -

The symbol ‘∈’ means belongs to. ‘∉’ means does not belong to.
(i) 4 ……A
4 ∈ A (since, 4 is present in set A)
(ii) -4……A
-4 ∉ A (since, -4 is not present in set A)
(iii) 12…..A
12 ∉ A (since, 12 is not present in set A)
(iv) 9…..A
9 ∈ A (since, 9 is present in set A)
(v) 0……A
0 ∈ A (since, 0 is present in set A)
(vi) -2……A
-2 ∉ A (since, -2 is not present in set A)

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