document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=782130>Question 782130</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me answer this and give some explanations for easy understanding..<BR>\n" );
document.write( "Given:<BR>\n" );
document.write( "sin= -4/5<BR>\n" );
document.write( "pi< theta < 3pi/2,\r<BR>\n" );
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document.write( "Find sin2theita and sin theita/2.\r<BR>\n" );
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document.write( "Pls. reply as soon as possible  >_< </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #476284 by </B><A HREF=/tutors/aboutme.mpl?userid=oscargut><B>oscargut(2103)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oscargut><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=oscargut><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=476284\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If sin(theta) = -4/5\r<BR>\n" );
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document.write( "and pi< theta < 3pi/2\r<BR>\n" );
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document.write( "Then cos(theta) = -3/5\r<BR>\n" );
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document.write( "sin(2theta) = 2sin(theta)cos(theta) = 2(-4/5)(-3/5) = 24/25\r<BR>\n" );
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document.write( "If you need more help with similar questions you can contact me now at:\r<BR>\n" );
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document.write( "mthman@gmail.com\r<BR>\n" );
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document.write( "Thanks </SPAN>\n" );
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