\
Find
.
\
The trigonometric functions
and
.
\
\
\
The value of
is
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ab9a9b239bfc395a61f5d3f7d5160e72.png\")
..![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8efb9b7c4cbc74bd50be6fd56f1d898c.png\")
and ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f88012e9d586267b9bfdd6a7a45cf5aa.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7f3c108e4872dbc6876c68d517520bff.png\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ab9a9b239bfc395a61f5d3f7d5160e72.png\")
is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5c3ba40dd6e0ee8c04106fedb75641ab.png\")
.