[postlink]
http://video-matematika.blogspot.com/2011/05/grafik-fungsi-trigonometri-1.html[/postlink]
http://www.youtube.com/watch?v=s_NI50p-pcgendofvid
[starttext]
Grafik fungsi trigonometri 1
[endtext]
[starttext]
Grafik fungsi trigonometri 1
[endtext]
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