Question

Let set $A=\{6,8,10,12\}$ and set $B=\{3,9,15,18\}.$

Insert the symbol ' $\in$ ' or ' $\notin$ ' to make true:

$(6+8)\dots A$

Answer 1

Step: Inserting the correct symbol

Given set $A=\{6,8,10,12\}$

$6+8=14$ is not an element of set A.

Hence, $6+8\notin A.$