document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1155006>Question 1155006</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if sec theda = (-13/5) and 90 degrees < theda < 180 degrees , find the exact value of cos2 theda </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #777548 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=777548\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "if <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sec+%28theta%29+=+%28-13%2F5%29 ALIGN=MIDDLE  ALT=\"sec+%28theta%29+=+%28-13%2F5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=90+%3C+theta+%3C+180 ALIGN=MIDDLE  ALT=\"90+%3C+theta+%3C+180\"   DISABLED_style= \"max-width:90%; height:auto;\" > degrees , \r<BR>\n" );
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document.write( "find the exact value of cos2 theda (theta)-> not quite sure if you have cos(2theta) or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%5E2%28theta%29 ALIGN=MIDDLE  ALT=\"cos%5E2%28theta%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "if you have <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%5E2%28theta%29 ALIGN=MIDDLE  ALT=\"cos%5E2%28theta%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "use theta in quadrant II [<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=90 ALIGN=MIDDLE  ALT=\"90\"   DISABLED_style= \"max-width:90%; height:auto;\" >° to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=180 ALIGN=MIDDLE  ALT=\"180\"   DISABLED_style= \"max-width:90%; height:auto;\" >°]\r<BR>\n" );
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document.write( "if <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sec+%28theta%29=-13%2F5 ALIGN=MIDDLE  ALT=\"sec+%28theta%29=-13%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos+%28theta%29=1%2Fsec%28theta%29=-5%2F13 ALIGN=MIDDLE  ALT=\"cos+%28theta%29=1%2Fsec%28theta%29=-5%2F13\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "then\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%5E2+%28theta%29=%28-5%2F13%29%5E2 ALIGN=MIDDLE  ALT=\"cos%5E2+%28theta%29=%28-5%2F13%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%5E2+%28theta%29=25%2F169 ALIGN=MIDDLE  ALT=\"cos%5E2+%28theta%29=25%2F169\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "if you have <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%282theta%29 ALIGN=MIDDLE  ALT=\"cos%282theta%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%282theta%29=cos%5E2%28theta%29+-+sin%5E2%28theta%29 ALIGN=MIDDLE  ALT=\"cos%282theta%29=cos%5E2%28theta%29+-+sin%5E2%28theta%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%5E2%28theta%29=1-cos%5E2%28theta%29 ALIGN=MIDDLE  ALT=\"sin%5E2%28theta%29=1-cos%5E2%28theta%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "=><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%282theta%29=cos%5E2%28theta%29+-+%281-cos%5E2%28theta%29%29 ALIGN=MIDDLE  ALT=\"cos%282theta%29=cos%5E2%28theta%29+-+%281-cos%5E2%28theta%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "=><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%282theta%29=2cos%5E2%28theta%29+-+1 ALIGN=MIDDLE  ALT=\"cos%282theta%29=2cos%5E2%28theta%29+-+1\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%282theta%29=%2825%2F169%29+-+1 ALIGN=MIDDLE  ALT=\"cos%282theta%29=%2825%2F169%29+-+1\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%282theta%29=25%2F169+-+169%2F169 ALIGN=MIDDLE  ALT=\"cos%282theta%29=25%2F169+-+169%2F169\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%282theta%29=-144%2F169 ALIGN=MIDDLE  ALT=\"cos%282theta%29=-144%2F169\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
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