The expression is .
Simplify the expression.
(Original expression)
(Apply formula: )
(Definition of )
(Simplify)
.
The simplified expression is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a3e0ba2737e293c5daf877b63e4a17eb.png\")
. (Original expression)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=49abd8b3837ed4889aac6696e4ecad27.png\")
(Apply formula: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e5e68bbdaa7511a86f77ef4c34ddb05b.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=20c704d9bc75f0c87fc4504e3857e562.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=0d4f231917b3f068312c06511923f7f8.png\")
(Simplify) ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=403622b034036ba9fddd7de981118fbb.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4e23f35e0366e69555927154f9d8ee84.png\")
.