\
The function is
.
\
If
and
is one to one function then
.
\
.
\
\
.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b6bd3acc8168244de8c074f7129d1925.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=34be7fb067b94bd17e8baea5428d5408.png\")
and ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7638897a5bb9204998d7996637c7b50a.png\")
is one to one function then ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=229228a683e14b3a309f67cafc3d5322.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5dcb270c2ee95ed4e43e821a9a7aec45.png\")
.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5dcb270c2ee95ed4e43e821a9a7aec45.png\")
.