\
The expression is
.
\
(Write the expression in factorial form)
\
The expression is
.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5f4040aa128c17dfc872d6568bad8c1f.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b2fa0ab9622c8425328754bda5be1f90.png\")
(Write the expression in factorial form)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=29f42939b7994db645298a4ecfb93ad1.png\")
.