Step 1 :
The function is .
Apply derivative on each side with respect to x.
The derivative is
Solution :
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=93828ed10e1a10f87a2fe30c24dd2035.png\")
. . ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ff35912d850c46f21968ef448a9f0595.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=19ea59dc4cedaa6ab1308ca826711470.png\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=19ea59dc4cedaa6ab1308ca826711470.png\")