$\"\"$

The number set is $\"\"$ and $\"\"$ .

Find rational number between the numbers.

Consider the rational number is $\"\"$ and $\"\"$ .

$\"\"$ is a rational number.

$\"\"$

Find irrational number between the numbers.

Consider an irrational number between the $\"\"$ and $\"\"$ .

$\"\"$ is an irrational number. $\"\"$

a. $\"\"$ is a rational number.

b. $\"\"$ is an irrational number.