The value of $\"\"$ is $\"\"$ .

Find the reference number $\"\"$ .

The reference number $\"\"$ associated with $\"\"$ is the shortest distance along the unit circle between the terminal points determined by $\"\"$ and $\"\"$ -axis.

$\"\"$ $\"\"$

$\"\"$

Reference number is $\"\"$

Find the terminal number.

The point $\"\"$ obtained by moving along the unit circle in either clockwise or anti clockwise direction is the terminal distance.

The reference number is $\"\"$ , the terminal point is $\"\"$ .

Since $\"\"$ lies in third quadrant, both $\"\"$

Terminal point is $\"\"$ .