Question

If "$x$" is an element of the set "$Y$", then we write it as

• A. $x\in Y$
• B. $Y\in x$
• C. $x\notin Y$

Answer 1

The correct option is A $x\in Y$

The notation for some element "belongs to " a set is $\in .$
Here, $x$ belongs to the set $Y.$
So, it can be written as $x\in Y.$