The expression is .
(Apply Pythagorean identity: )
(Simplify) \ \
(Divide: )
The simplified expression value is 1.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=74ced4bfe2bd434b85e4a2cca390c794.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ff8b6dbbcc36ee3103c4da7899971f25.png\")
(Apply Pythagorean identity: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6cb753d8e4a9ae883c73d84fbd966dfd.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9f73a80f06773b9606b0889d260abd8f.png\")
(Simplify) \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=346f89c32ec06cbd49e0ef8b566be67a.png\")
(Divide: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d75965ec5746c2cb3d9ee3911f480aff.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")