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Differentiating above equation
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![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=01608ad07a87a36ddaf908d9212afccd.png\")
![\"Margin-bottom:](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=fc0fa57945c6a6dd43d6ae59f51907a4.png\")
![\"Margin-bottom:](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ee7b18115abaca848b1b39e849fa92b9.png\")
![\"Margin-bottom:](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f3cb14ec31a3d2e8a7ff55b727e52dcb.png\")
![\"Margin-bottom:](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8624a10cce81ec06c730300b254a86a4.png\")
![\"Margin-bottom:](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c499411f7180a6d60cc8c31c6931f014.png\")
![\"Margin-bottom:](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b43b770b43cbf1c5b5640ea337cc4925.png\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=49d694d5a66669e183ef06bc6aa75471.png\")