The function is
(Take out x and term)
(Cancel common term)
(Proparty of limits)
(Simplify)
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=dfcbe01f0bd48aa4711d0c7a46309bd1.png\")
![\"italic](\"http://www.wiris.com/portal/plugins/demo/fckeditor/php/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=953acbe2bb025a755ba7429caf2066b7.png\")
(Take out x and ![\"begin](\"http://www.wiris.com/portal/plugins/demo/fckeditor/php/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b53e5a8dad92ffc5b2f27de6fecd0a62.png\")
term)![\"italic](\"http://www.wiris.com/portal/plugins/demo/fckeditor/php/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1157e69c3a52858331c2cc9056a876e9.png\")
(Cancel common term)![\"fraction](\"http://www.wiris.com/portal/plugins/demo/fckeditor/php/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7c159630c6d13797c8ba6985fe0b13d8.png\")
(Proparty of limits)![\"fraction](\"http://www.wiris.com/portal/plugins/demo/fckeditor/php/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ce7766af8b0e7d607b366a286e89b835.png\")
(Simplify)![\"infinity\"](\"http://www.wiris.com/portal/plugins/demo/fckeditor/php/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0e577aa2854fe7c6f0fedb41e5b34688.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=93276c2bb32bb7942707ad74867b5e84.png\")
.