document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=851712>Question 851712</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Equation of cosine function with period of 3 pi </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #513024 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=513024\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Equation of cosine function with period of 3 pi<BR>\n" );
document.write( "Equation of cos function: y=Acos(Bx-C)+D, A=amplitude, period=2&#960;/B, phase shift=C/B, D=vertical shift.<BR>\n" );
document.write( "For period of 3&#960;:<BR>\n" );
document.write( "3&#960;=2&#960;/B<BR>\n" );
document.write( "B=2/3<BR>\n" );
document.write( "Equation of cos function with period of 3 &#960;: y=Acos(2x/3-C)+D </SPAN>\n" );
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