\
The real value,
.
\
The point on the unit circle is
.
\
(Substitute
)
\
(Substitute
)
\
The value of
.
\
The value of
.
\
The value of
.
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.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1bb730073268e2a7d61d6d84175b6551.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=efe827c079ba8b17493bf903364f04c2.png\")
(Substitute ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5b197eca68eecf8c39eb118213925d29.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=46efc3042d7416589e5b465e91f4310a.png\")
(Substitute ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=36f4cb111a14c1155b19fc57072511e1.png\")
)![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
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.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ff89d83d0a4595c6c9cf2502bc1e76fb.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1b4466f25e0df4b7feccd9846f8fc546.png\")
.