Step 1:
\The sine of angle is
,
.

Hence
and
.
Since
, the value of
lies in Quadrant III.
Find the value of adjacent side.
\





Since
lies in Quadrant III, 
Step 2:
\



Reciprocal identity :
.


Step 3:
\Reciprocal identity:
.


Reciprocal identity :
.


Solution:
\



