The expression is .
Simplify the expression.
(Original expression)
(Rewrite the expression)
(Definition of )
(Simplify)
.
The simplified expression value is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=96e481f6eae9660ea7cfe7bcbac85f7d.png\")
. (Original expression)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5ce17ebd1fe47b0b962ff5a23331f738.png\")
(Rewrite the expression)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=85f418d37f70c7b8ebf5637d528ad50d.png\")
(Definition of ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6113ede3c513268dfb635b777b6a2a03.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3fbf2f01ca9926ef5f86d68d2658614c.png\")
(Simplify)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=48577dce48c47ec6ee70bed62bccd3d2.png\")
(Definition of ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4282056bd82a8463d459bca6a65cd2fd.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c5f790b0d8658eb460428c7fabde62af.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=31bdb0a05f0731e8cc8f53070a519185.png\")
.