\
The expression is
.
\
Substitute
in above expression. \ \
\
\
\ \
\
\
\
The value of the expression at
is
.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4b183ffc3d19ea9b826432c453e1b412.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f0360959e0d5a03d046c601cd1c38ae2.png\")
in above expression. \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d90cdd54e2877da0d05de4768538ec8a.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7c6a65976df65a7a8d39b31ece1b83bd.png\")
\ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=aae0dbc290b154543a089ffb9cb33a23.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=46bca3b67e49e5fc96f5fc2e06a94710.png\")
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=636ce49fcca8e32b632b2f2dea97177f.png\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=46bca3b67e49e5fc96f5fc2e06a94710.png\")
.