Join us at The Official PhilMusic Facebook Group: https://www.facebook.com/groups/philmusic/
http://www.zoom.co.jp/http://talk.philmusic.com/index.php?topic=29963.0http://www.google.comhttp://www.youtube.com
may nag bebenta kasi sir need ko asap kaya wala ng time.
g1 - g2 = g(1 - 2) = g (-1) = -g