Question

B ={an even prime number}, n(B) =________

Answer 1

$\huge\purple{Required \: Answer :}$

Given :

B = {an even prime number} ,

To Find :

n(B) = ?

Solution :

There is only 1 Even Prime Number , which is 2

Hence,

$</em></strong><strong><em>B</em></strong><strong><em> = </em></strong><strong><em>{</em></strong><strong><em>(</em></strong><strong><em> 2 </em></strong><strong><em>)</em></strong><strong><em>}</em></strong><strong><em>\\ n(</em></strong><strong><em>B</em></strong><strong><em>) = <u>1</u>$

So, $\huge{n(B) = <u>1</u>}$

$\huge\underline{Thanks}$