The function is
(Take out x and term)
(Cancel common term x)
(Simplify)
(Proparty of limits)
Therefore .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"italic](\"http://www.wiris.com/portal/plugins/demo/fckeditor/php/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=685de5fea70b6e451b67696df86e24cb.png\")
![\"italic](\"http://www.wiris.com/portal/plugins/demo/fckeditor/php/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=19476683b8e8cab8cf5ec078100e7e28.png\")
(Take out x and ![\"x](\"http://www.wiris.com/portal/plugins/demo/fckeditor/php/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8342e77318069c2198cbc9c26845ec3a.png\")
term)![\"italic](\"http://www.wiris.com/portal/plugins/demo/fckeditor/php/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=81ba2b54e8b3eb0cfdaa95811202e5a6.png\")
(Cancel common term x)![\"italic](\"http://www.wiris.com/portal/plugins/demo/fckeditor/php/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6e80a6567b7ed278eaacad68a71d52e9.png\")
(Simplify)![\"open](\"http://www.wiris.com/portal/plugins/demo/fckeditor/php/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=585c2a1f322470e90ebc289bed3ebdf8.png\")
(Proparty of limits)![\"left](\"http://www.wiris.com/portal/plugins/demo/fckeditor/php/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=016fc97daf1071511f09338de84cb832.png\")
(Simplify)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"italic](\"http://www.wiris.com/portal/plugins/demo/fckeditor/php/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=71d3a7bcd72dfc54827512a21658b1bc.png\")
.