The expression is . \ \
Apply formulas : and .
\ \
Cancel common terms.
Apply the limits \ \
Cancel common terms. \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5736df78fec6c41795fc4b800a5f8ef8.png\")
. \ \
. \ \
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9d73e6faa500eb20afba08d507fa2355.png\")
and ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9d8f4664b3bcf13dc5967b7ceba459e7.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a9fc8335180dd3a9526b5e5a63d99d97.png\")
\ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e4a7777e2d1e2df794455e68d36d6f78.png\")
\ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3ed9f50f349264be212ad864a0f98202.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2b8cd5c6861ad0d7b80406507bb6f706.png\")
\ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e0abd3b5d434cfa9374be73bfad028c1.png\")
\ \