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=78012d92108da50030297254ca1f8558.png\")
. (Original expression)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f91d1f3caf635cc644324fc67578c490.png\")
(Rewrite the expression)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=906caba7c8cd703204b1684af16ea2d9.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=ff7ff797d67638b728879d5eb4600c35.png\")
(Simplify)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f3e9567eb57bab5b3587c06f7ef07d23.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=e6cfe9679bdc491e9c2bf93211994e9a.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=dc4c518ba33e762c1afd9f6f364b9033.png\")
.