The expression is .
(Apply Pythagorean identity: )
(Simplify)
(Apply quotient identity: ) \ \
The simplified expression value is .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=bbde9fc6139132c59ba8030bc5dc5ee7.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=60162c2f98a7f40d98cf18ecabdb5967.png\")
(Apply Pythagorean identity: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b5b722b5cc62c3ab9549faedc5245235.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=dd9e45d4b5b93dd50a9253e9ef850033.png\")
(Simplify)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e21c1d16c4e25d0253f9f033e2b40959.png\")
(Apply quotient identity: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=76e008db80f477d582abb1134b820c23.png\")
) \ \
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6ee0336ad8d19f587d84ac4fe3953978.png\")
.