\
The limit expression is
.
\
Graph :
\
Graph the function
.
\
\
Observe the graph :
\
.
\
\
Graph :
\
Graph the function
.
\
\
.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1022170ca3d1948a2d3f7c15f83fdda3.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1022170ca3d1948a2d3f7c15f83fdda3.png\")
.![\"\"](\"/userfiles/52-755-68(1).gif\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4d28c9cd5f8417879214b8df7650fff9.png\")
.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4d28c9cd5f8417879214b8df7650fff9.png\")
.