Question

Let $A=\{1,2,3,4,5,6\}$. Insert the appropriate symbol $\in$ or $\notin$ in the blank spaces:
(i) 5. . .A (ii) 8 . . . A (iii) 0. . .A (iv) 4. . . A (v) 2. . .A (vi) 10. . .A

Answer 1

If the element belongs to $A$ we write $\in$,else $\notin$

(i) $5\in A$, as 5 is the 5th element in set A.
(ii) $8\notin A$, as 8 is not present in set A.
(iii) $0\notin A$, as 0 is not present in set A.
(iv) $4\in A$, as 4 is the 4th element in set A.
(v) $2\in A$, as 2 is the 2nd element in set A.
(vi) $10\notin A$ as 10 is not present in set A.