document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1077273>Question 1077273</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi can someone help me with this problem please? THANK YOU! \r<BR>\n" );
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document.write( "   Find the exact value of cos(2 theta)\r<BR>\n" );
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document.write( "          cos(theta)=-15/17 and theta terminates in QII.\r<BR>\n" );
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document.write( "         a.-240/289<BR>\n" );
document.write( "         b.161/289<BR>\n" );
document.write( "         c.120/289<BR>\n" );
document.write( "         d.16/17 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #691850 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10551)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=691850\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Hi can someone help me with this problem please? THANK YOU! \r<BR>\n" );
document.write( "\n" );
document.write( "   Find the exact value of cos(2 theta)\r<BR>\n" );
document.write( "\n" );
document.write( "          cos(theta)=-15/17 and theta terminates in QII.\r<BR>\n" );
document.write( "\n" );
document.write( "         a.-240/289<BR>\n" );
document.write( "         b.161/289<BR>\n" );
document.write( "         c.120/289<BR>\n" );
document.write( "         d.16/17<BR>\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\"><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos+%282theta%29+=+2+cos%5E2+%28theta%29+-+1 ALIGN=MIDDLE  ALT=\"cos+%282theta%29+=+2+cos%5E2+%28theta%29+-+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos+%282theta%29+=+2+%28-+15%2F17%29+-+1 ALIGN=MIDDLE  ALT=\"cos+%282theta%29+=+2+%28-+15%2F17%29+-+1\"   DISABLED_style= \"max-width:90%; height:auto;\" > ------ Substituting <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%281%2C3%2C+%28-+15%29%2F17%2C+for%2C+cos%5E2+%28theta%29%29 ALIGN=MIDDLE  ALT=\"matrix%281%2C3%2C+%28-+15%29%2F17%2C+for%2C+cos%5E2+%28theta%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos+%282theta%29+=+2%28225%2F289%29+-+1 ALIGN=MIDDLE  ALT=\"cos+%282theta%29+=+2%28225%2F289%29+-+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos+%282theta%29+=+450%2F289+-+1 ALIGN=MIDDLE  ALT=\"cos+%282theta%29+=+450%2F289+-+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28matrix%281%2C7%2C+cos+%282theta%29%2C+%22=%22%2C+450%2F289+-+289%2F289%2C+%22=%22%2C+161%2F289%2C+%22%28CHOICE%22%2C+%22b.%29%22%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );