The equation is on the interval .
Consider .
Apply double-angle formula : .
Therefore, no solution exist .
No solution exist.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=19909acb3a84cffaebdc0bef64d067d6.png\")
on the interval ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7dc53d9c86bfdd3f4396bb01796eb555.png\")
. on the interval .![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=19909acb3a84cffaebdc0bef64d067d6.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=95e89b726ea3f8a12522787730b05b2b.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b70de5e99b8b72e5859c8ee2f945448d.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1922ffdb30fb695de87bade986a0db0b.png\")