The inequality .
(Replace k with 7 in original inequality)
(Multiply: )
The inequality is false.
The inequality is false for k = 7.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=081fc9f7043c338794243f2f5b2e6541.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=535e03c757ce0bf72a86648888427332.png\")
(Replace k with 7 in original inequality)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5ffb7129e02010f09e31ee9955be36b3.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4e21170a60b3e4be37e3546d95f57d6c.png\")
) ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5ffb7129e02010f09e31ee9955be36b3.png\")
is false. ![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=081fc9f7043c338794243f2f5b2e6541.png\")
is false for k = 7.