The expresion is .
Rewrite the expression as .
( Since )
Thus, the exact value of .
The exact value of .
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=274f4ff149e6e2f9a80898447530c84f.png\")
..![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4938cd353230b7ada9d1e80684c9abe4.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3c064201e800655a7b85780dab23c369.png\")
( Since ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6f39e61d17aef23860c2fbb2656c4a97.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9b852e17550a997cb321bc6e504f35ee.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b281b665fdd26173b62168de4798e40a.png\")
( Since ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=bb9467869df0cad858146308699b4425.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1bc89cc5f7fd2d28e3d6737e1e17cb4f.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1bc89cc5f7fd2d28e3d6737e1e17cb4f.png\")
.