document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1000866>Question 1000866</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve the problem below:\r<BR>\n" );
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document.write( "Solve the equation and find all real solutions:\r<BR>\n" );
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document.write( "cosx*sinx = 0.84 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #618171 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52788)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=618171\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "cos(x)*sin(x) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F2 ALIGN=MIDDLE  ALT=\"1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >*sin(2x).\r<BR>\n" );
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document.write( "It is well known trigonometry formula called double argument formula for sine.\r<BR>\n" );
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document.write( "Then your equation takes a form\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F2 ALIGN=MIDDLE  ALT=\"1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >*sin(2x) = 0.84.\r<BR>\n" );
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document.write( "Multiply both sides by &nbsp;2. &nbsp;You will get\r<BR>\n" );
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document.write( "sin(2x) = 1.68.\r<BR>\n" );
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document.write( "But sine can not be greater than &nbsp;1. &nbsp;Contradiction.\r<BR>\n" );
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document.write( "<U>Answer</U>. &nbsp;The given equation has no solution.\r<BR>\n" );
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