Observe the graph of the function :
The function is decreasing over the intervals , and .
Thus, the function does not decreases over the interval .
No.
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7638897a5bb9204998d7996637c7b50a.png\")
:: is decreasing over the intervals ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=eb42efc6a59f3ab713d12dada3b7418f.png\")
, ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f76a01d5f396c84793608edb212eb6ef.png\")
and ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c7a92f21ac668264e734f2664f3281e0.png\")
. does not decreases over the interval ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b08110c77c0082acf12a241e3b78ecd9.png\")
.