Solutions to a Review for a Trigonometry Test for a class. Youtube videos by Julie Harland are organized at http://yourmathgal.com. See pdf on that site under Trig, special videos. Graphing y=cos(x/3) and stating period. Graphing y=2sin(πx/3) and stating amplitude and period.<br />For more great math videos visit: www.youtube.com/user/videosbyjulieharland/videos . Aligned to Common Core State Standard: HSF-IF.7
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