![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2cd7f206de171377d42b7437f5c27fb8.png\")
.The function is .
Trigonometric even-odd identity : ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=dbd0b304e7632525909068e93c1a54af.png\")
.
Since ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a0488ab613e7c852223e6fcca0d540bd.png\")
, the sine function is an odd function.
Since the sine function is an odd function, its graph is symmetric with respect to origin.
\ \The sine function is an odd function and it is symmetric with respect to origin.