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=8524bd3021819121ea20b9f024e15bb0.png\")
. (Original expression)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ed52dfe32e620c2e8b6c22766836bfa7.png\")
(Apply formula: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=82d34be026b13f8b86e425d3ac3b4f52.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cf02543275a2bc65dd97fe2de1e1783c.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=f33e7489493101607dc04346ce9077c6.png\")
(Simplify) ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5a70dd4d0c6f4cc16a49b6f0599d22b9.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e508d0b2abb49ff1c4ad6f4e2c5dd7d8.png\")
.