document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=312079>Question 312079</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello there. I have a silly problem really. i have a function : f(x)=-2cos(2x+pi/2). I need to draw a graph of it. I've found the spots(zero,minimal,maximal) and I am not sure of whether I'm supposed to draw it from coords -pi/4,-2 or -pi/4,2. please help me. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #223134 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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/cgi-bin/show-face.mpl?user=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=223134\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Typically repeating functions are drawn over at least one period.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+300%2C+-7%2C+7%2C+-3%2C+3%2C+-2%2Acos%282%2Ax%2Bpi%2F2%29%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+300%2C+-7%2C+7%2C+-3%2C+3%2C+-2%2Acos%282%2Ax%2Bpi%2F2%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "One period of this function would be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pi ALIGN=MIDDLE  ALT=\"pi\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "What is your question?<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+300%2C+-2%2C+2%2C+-3%2C+3%2C+-2%2Acos%282%2Ax%2Bpi%2F2%29%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+300%2C+-2%2C+2%2C+-3%2C+3%2C+-2%2Acos%282%2Ax%2Bpi%2F2%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  </SPAN>\n" );
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