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) 0……A (ii) -2……A
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) 0……A (ii) -2……A

Answers:

(i) 

(‘∈’ – belongs to, ‘∉’ – does not belong to)

0……A

0 ∈ A

Because, the number 0 is included in the set A.

(ii) 

(‘∈’ – belongs to, ‘∉’ – does not belong to)

-2……A

-2 ∉ A

Because, the number -2 is not included in the set A.