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 ---- A

Answer 1

Step 1: Inserting the symbol '$\in$' or '$\notin$' to 6 ---- A to make true

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

Since 6 is an element of set A.

Hence, 6 $\in$ A.