![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
Sound wave from the digital data fed from a CD into a CD player represented by ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a3df69a000265d981d1f892be5c8ff93.png\")
.
Find the series for ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cb37f2b222d50fd4d91c14da0f014be9.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1b2cf34fe5b84c6621f4fac04fc1a589.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b157a4e49e5fb85d41f1817180f09ad9.png\")
\
Graph the series for ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cb37f2b222d50fd4d91c14da0f014be9.png\")
.
![\"\"](\"/userfiles/52-643-48(1).gif\")
Observe the graph:
\The graph oscillates in a pattern that repeats about every ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=09a8ebd281cfb9aad4379c2ebb6a743a.png\")
second.
\
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
\
Graph the series for .
\
The graph oscillates in a pattern that repeats about every ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=09a8ebd281cfb9aad4379c2ebb6a743a.png\")
second.
\
\