The function is .
The reciprocal identity is .
(Write original function)
(Substitute )
(Use calculator)
(Simplify)
The value of .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2f83d55ab5413fd359363af1b60d56a9.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2472812fa3d5eeda57179f4e264c4328.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2f83d55ab5413fd359363af1b60d56a9.png\")
(Write original function)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=422337bd1d510960920ef7e8bea5b047.png\")
(Substitute ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3eaaa60227f34dcedbf72efced18893c.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5c11aef7db1ee6a24fb647685a1baf3f.png\")
(Use calculator)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1c2b871058cf9db8831c5689077651fb.png\")
(Simplify)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4484f263e8e57700c33a5b2b424899ed.png\")
.